{"api_version":"1","generated_at":"2026-04-23T00:41:42+00:00","cve":"CVE-2025-26597","urls":{"html":"https://cve.report/CVE-2025-26597","api":"https://cve.report/api/cve/CVE-2025-26597.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-26597","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-26597"},"summary":{"title":"Xorg: xwayland: buffer overflow in xkbchangetypesofkey()","description":"A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.","state":"PUBLISHED","assigner":"redhat","published_at":"2025-02-25 16:15:38","updated_at":"2026-04-06 13:17:15"},"problem_types":["CWE-119","CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"secalert@redhat.com","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2025:2879","name":"https://access.redhat.com/errata/RHSA-2025:2879","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:3976","name":"https://access.redhat.com/errata/RHSA-2025:3976","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/security/cve/CVE-2025-26597","name":"https://access.redhat.com/security/cve/CVE-2025-26597","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2345255","name":"https://bugzilla.redhat.com/show_bug.cgi?id=2345255","refsource":"secalert@redhat.com","tags":["Issue Tracking"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:7163","name":"https://access.redhat.com/errata/RHSA-2025:7163","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:7165","name":"https://access.redhat.com/errata/RHSA-2025:7165","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2502","name":"https://access.redhat.com/errata/RHSA-2025:2502","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2861","name":"https://access.redhat.com/errata/RHSA-2025:2861","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2874","name":"https://access.redhat.com/errata/RHSA-2025:2874","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2862","name":"https://access.redhat.com/errata/RHSA-2025:2862","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html","name":"https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2866","name":"https://access.redhat.com/errata/RHSA-2025:2866","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2873","name":"https://access.redhat.com/errata/RHSA-2025:2873","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2865","name":"https://access.redhat.com/errata/RHSA-2025:2865","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2500","name":"https://access.redhat.com/errata/RHSA-2025:2500","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2880","name":"https://access.redhat.com/errata/RHSA-2025:2880","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:7458","name":"https://access.redhat.com/errata/RHSA-2025:7458","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2025:2875","name":"https://access.redhat.com/errata/RHSA-2025:2875","refsource":"secalert@redhat.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-26597","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-26597","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","version":"unaffected 0:24.1.5-3.el10_0 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION","version":"unaffected 0:1.1.0-25.el6_10 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 7 Extended Lifecycle Support","version":"unaffected 0:1.8.0-36.el7_9 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 7 Extended Lifecycle Support","version":"unaffected 0:1.20.4-30.el7_9 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","version":"unaffected 0:1.13.1-15.el8_10 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.2 Advanced Update Support","version":"unaffected 0:1.9.0-15.el8_2.13 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support","version":"unaffected 0:1.11.0-8.el8_4.12 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.4 Telecommunications Update Service","version":"unaffected 0:1.11.0-8.el8_4.12 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions","version":"unaffected 0:1.11.0-8.el8_4.12 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support","version":"unaffected 0:1.12.0-6.el8_6.13 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.6 Telecommunications Update Service","version":"unaffected 0:1.12.0-6.el8_6.13 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions","version":"unaffected 0:1.12.0-6.el8_6.13 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.8 Extended Update Support","version":"unaffected 0:1.12.0-15.el8_8.12 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","version":"unaffected 0:1.14.1-1.el9_5.1 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","version":"unaffected 0:1.20.11-28.el9_6 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","version":"unaffected 0:23.2.7-3.el9_6 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions","version":"unaffected 0:1.11.0-22.el9_0.13 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.2 Extended Update Support","version":"unaffected 0:1.12.0-14.el9_2.10 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.4 Extended Update Support","version":"unaffected 0:1.13.1-8.el9_4.5 * rpm","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","version":"","platforms":[]}],"timeline":[{"source":"CNA","time":"2025-02-12T14:15:01.517Z","lang":"en","value":"Reported to Red Hat."},{"source":"CNA","time":"2025-02-25T00:00:00.000Z","lang":"en","value":"Made public."}],"solutions":[],"workarounds":[{"source":"CNA","title":"","value":"Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.","time":"","lang":"en"}],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2025","cve_id":"26597","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"7.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2025","cve_id":"26597","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2025","cve_id":"26597","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2025","cve_id":"26597","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"tigervnc","cpe5":"tigervnc","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2025","cve_id":"26597","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"x.org","cpe5":"xwayland","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2025","cve_id":"26597","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"x.org","cpe5":"x_server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2025","cve_id":"26597","cve":"CVE-2025-26597","epss":"0.000210000","percentile":"0.057310000","score_date":"2026-04-07","updated_at":"2026-04-08 00:03:39"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-26597","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2025-02-25T16:39:35.677718Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2025-02-25T19:14:54.385Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"},{"providerMetadata":{"dateUpdated":"2025-11-03T21:13:03.471Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html"}],"title":"CVE Program Container"}],"cna":{"affected":[{"collectionURL":"https://gitlab.freedesktop.org/xorg/xserver/","defaultStatus":"unaffected","packageName":"xserver","versions":[{"lessThan":"21.1.16","status":"affected","version":"0","versionType":"semver"},{"lessThan":"24.1.6","status":"affected","version":"22.0.0","versionType":"semver"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.0"],"defaultStatus":"affected","packageName":"xorg-x11-server-Xwayland","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:24.1.5-3.el10_0","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:rhel_els:6"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.1.0-25.el6_10","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:rhel_els:7"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 7 Extended Lifecycle Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.8.0-36.el7_9","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:rhel_els:7"],"defaultStatus":"affected","packageName":"xorg-x11-server","product":"Red Hat Enterprise Linux 7 Extended Lifecycle Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.20.4-30.el7_9","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.13.1-15.el8_10","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_aus:8.2::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.2 Advanced Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.9.0-15.el8_2.13","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_aus:8.4::appstream","cpe:/a:redhat:rhel_tus:8.4::appstream","cpe:/a:redhat:rhel_e4s:8.4::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.11.0-8.el8_4.12","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_aus:8.4::appstream","cpe:/a:redhat:rhel_tus:8.4::appstream","cpe:/a:redhat:rhel_e4s:8.4::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.4 Telecommunications Update Service","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.11.0-8.el8_4.12","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_aus:8.4::appstream","cpe:/a:redhat:rhel_tus:8.4::appstream","cpe:/a:redhat:rhel_e4s:8.4::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.11.0-8.el8_4.12","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_tus:8.6::appstream","cpe:/a:redhat:rhel_aus:8.6::appstream","cpe:/a:redhat:rhel_e4s:8.6::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.12.0-6.el8_6.13","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_tus:8.6::appstream","cpe:/a:redhat:rhel_aus:8.6::appstream","cpe:/a:redhat:rhel_e4s:8.6::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.6 Telecommunications Update Service","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.12.0-6.el8_6.13","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_tus:8.6::appstream","cpe:/a:redhat:rhel_aus:8.6::appstream","cpe:/a:redhat:rhel_e4s:8.6::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.12.0-6.el8_6.13","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_eus:8.8::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 8.8 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.12.0-15.el8_8.12","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.14.1-1.el9_5.1","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9::crb","cpe:/a:redhat:enterprise_linux:9::appstream"],"defaultStatus":"affected","packageName":"xorg-x11-server","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.20.11-28.el9_6","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9::crb","cpe:/a:redhat:enterprise_linux:9::appstream"],"defaultStatus":"affected","packageName":"xorg-x11-server-Xwayland","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:23.2.7-3.el9_6","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_e4s:9.0::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.11.0-22.el9_0.13","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_eus:9.2::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 9.2 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.12.0-14.el9_2.10","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:rhel_eus:9.4::appstream"],"defaultStatus":"affected","packageName":"tigervnc","product":"Red Hat Enterprise Linux 9.4 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:1.13.1-8.el9_4.5","versionType":"rpm"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"xorg-x11-server","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"xorg-x11-server","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"xorg-x11-server-Xwayland","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}],"datePublic":"2025-02-25T00:00:00.000Z","descriptions":[{"lang":"en","value":"A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-119","description":"Improper Restriction of Operations within the Bounds of a Memory Buffer","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-06T12:53:24.502Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"name":"RHSA-2025:2500","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2500"},{"name":"RHSA-2025:2502","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2502"},{"name":"RHSA-2025:2861","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2861"},{"name":"RHSA-2025:2862","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2862"},{"name":"RHSA-2025:2865","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2865"},{"name":"RHSA-2025:2866","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2866"},{"name":"RHSA-2025:2873","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2873"},{"name":"RHSA-2025:2874","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2874"},{"name":"RHSA-2025:2875","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2875"},{"name":"RHSA-2025:2879","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2879"},{"name":"RHSA-2025:2880","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:2880"},{"name":"RHSA-2025:3976","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:3976"},{"name":"RHSA-2025:7163","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:7163"},{"name":"RHSA-2025:7165","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:7165"},{"name":"RHSA-2025:7458","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2025:7458"},{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2025-26597"},{"name":"RHBZ#2345255","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2345255"}],"timeline":[{"lang":"en","time":"2025-02-12T14:15:01.517Z","value":"Reported to Red Hat."},{"lang":"en","time":"2025-02-25T00:00:00.000Z","value":"Made public."}],"title":"Xorg: xwayland: buffer overflow in xkbchangetypesofkey()","workarounds":[{"lang":"en","value":"Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}],"x_generator":{"engine":"cvelib 1.8.0"},"x_redhatCweChain":"CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer"}},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2025-26597","datePublished":"2025-02-25T15:54:48.196Z","dateReserved":"2025-02-12T14:12:22.795Z","dateUpdated":"2026-04-06T12:53:24.502Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-02-25 16:15:38","lastModifiedDate":"2026-04-06 13:17:15","problem_types":["CWE-119","CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"],"metrics":{"cvssMetricV31":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:*","matchCriteriaId":"79A8316C-BA22-441E-92AF-415AFABCEB76"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*","versionEndExcluding":"21.1.16","matchCriteriaId":"07E5F462-A20F-472C-85E7-804D46F01A7A"},{"vulnerable":true,"criteria":"cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*","versionEndExcluding":"24.1.6","matchCriteriaId":"1CBC57E6-F54D-4B54-9263-9753CCA3EEF7"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","matchCriteriaId":"142AD0DD-4CF3-4D74-9442-459CE3347E3A"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*","matchCriteriaId":"F4CFF558-3C47-480D-A2F0-BABF26042943"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*","matchCriteriaId":"7F6FB57C-2BC7-487C-96DD-132683AEB35D"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"26597","Ordinal":"1","Title":"Xorg: xwayland: buffer overflow in xkbchangetypesofkey()","CVE":"CVE-2025-26597","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"26597","Ordinal":"1","NoteData":"A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.","Type":"Description","Title":"Xorg: xwayland: buffer overflow in xkbchangetypesofkey()"}]}}}