{"api_version":"1","generated_at":"2026-07-23T22:02:23+00:00","cve":"CVE-2021-26676","urls":{"html":"https://cve.report/CVE-2021-26676","api":"https://cve.report/api/cve/CVE-2021-26676.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-26676","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26676"},"summary":{"title":"CVE-2021-26676","description":"gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-02-09 16:15:00","updated_at":"2022-05-06 20:59:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://www.openwall.com/lists/oss-security/2021/02/08/2","name":"https://www.openwall.com/lists/oss-security/2021/02/08/2","refsource":"MISC","tags":["Mailing List","Third Party Advisory"],"title":"oss-security - Remote code execution in connman","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog","name":"https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog","refsource":"CONFIRM","tags":["Release Notes","Third Party Advisory"],"title":"ChangeLog - connman/connman.git - Connection Manager","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://kunnamon.io/tbone/","name":"https://kunnamon.io/tbone/","refsource":"MISC","tags":[],"title":"Main menu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1","name":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"connman/connman.git - Connection Manager","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.debian.org/security/2021/dsa-4847","name":"DSA-4847","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-4847-1 connman","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00013.html","name":"[debian-lts-announce] 20210209 [SECURITY] [DLA 2552-1] connman security update","refsource":"MLIST","tags":["Mailing List","Third Party Advisory"],"title":"[SECURITY] [DLA 2552-1] connman security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1181751","name":"https://bugzilla.suse.com/show_bug.cgi?id=1181751","refsource":"MISC","tags":["Issue Tracking","Third Party Advisory"],"title":"Bug 1181751 – VUL-0: CVE-2021-26675, CVE-2021-26676: connman: mutliple issues in DNS handling","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa","name":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"connman/connman.git - Connection Manager","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://security.gentoo.org/glsa/202107-29","name":"GLSA-202107-29","refsource":"GENTOO","tags":[],"title":"ConnMan: Multiple vulnerabilities (GLSA 202107-29) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-26676","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26676","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"intel","cpe5":"connman","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"intel","cpe5":"connman","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"opensuse","cpe5":"leap","cpe6":"15.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"26676","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"opensuse","cpe5":"leap","cpe6":"15.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-26676","qid":"178401","title":"Debian Security Update for connman (DSA 4847-1)"},{"cve":"CVE-2021-26676","qid":"180196","title":"Debian Security Update for connman (CVE-2021-26676)"},{"cve":"CVE-2021-26676","qid":"199592","title":"Ubuntu Security Notification for ConnMan Vulnerabilities (USN-6236-1)"},{"cve":"CVE-2021-26676","qid":"501535","title":"Alpine Linux Security Update for connman"},{"cve":"CVE-2021-26676","qid":"501827","title":"Alpine Linux Security Update for connman"},{"cve":"CVE-2021-26676","qid":"504630","title":"Alpine Linux Security Update for connman"},{"cve":"CVE-2021-26676","qid":"710039","title":"Gentoo Linux ConnMan Multiple Vulnerabilities (GLSA 202107-29)"},{"cve":"CVE-2021-26676","qid":"750313","title":"OpenSUSE Security Update for connman (openSUSE-SU-2021:0416-1)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-26676","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1181751","refsource":"MISC","name":"https://bugzilla.suse.com/show_bug.cgi?id=1181751"},{"refsource":"CONFIRM","name":"https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog","url":"https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog"},{"refsource":"MISC","name":"https://www.openwall.com/lists/oss-security/2021/02/08/2","url":"https://www.openwall.com/lists/oss-security/2021/02/08/2"},{"refsource":"CONFIRM","name":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1","url":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1"},{"refsource":"CONFIRM","name":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa","url":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa"},{"refsource":"MLIST","name":"[debian-lts-announce] 20210209 [SECURITY] [DLA 2552-1] connman security update","url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00013.html"},{"refsource":"DEBIAN","name":"DSA-4847","url":"https://www.debian.org/security/2021/dsa-4847"},{"refsource":"MISC","name":"https://kunnamon.io/tbone/","url":"https://kunnamon.io/tbone/"},{"refsource":"GENTOO","name":"GLSA-202107-29","url":"https://security.gentoo.org/glsa/202107-29"}]}},"nvd":{"publishedDate":"2021-02-09 16:15:00","lastModifiedDate":"2022-05-06 20:59:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:A/AC:L/Au:N/C:P/I:N/A:N","accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":3.3},"severity":"LOW","exploitabilityScore":6.5,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:intel:connman:*:*:*:*:*:*:*:*","versionEndExcluding":"1.39","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"26676","Ordinal":"201747","Title":"CVE-2021-26676","CVE":"CVE-2021-26676","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"26676","Ordinal":"1","NoteData":"gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"26676","Ordinal":"2","NoteData":"2021-02-09","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"26676","Ordinal":"3","NoteData":"2021-07-12","Type":"Other","Title":"Modified"}]}}}