{"api_version":"1","generated_at":"2026-06-27T18:32:13+00:00","cve":"CVE-2026-45258","urls":{"html":"https://cve.report/CVE-2026-45258","api":"https://cve.report/api/cve/CVE-2026-45258.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45258","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45258"},"summary":{"title":"Multiple vulnerabilities in the sound(4) mmap path","description":"dsp_mmap_single() validated the requested mapping by checking the sum of the user-supplied offset and length against the buffer size.  This addition could overflow, so that a large offset and length wrapped around and passed the check.  The offset was then narrowed from 64 to 32 bits when converted to a buffer address, yielding a mapping that extended past the audio buffer into unrelated kernel memory.\n\nThe /dev/dsp device nodes are world-accessible by default.  On a system with an audio device, either issue allows an unprivileged local user to read and write kernel memory, which can be used to escalate privileges, potentially gaining full control of the affected system.  At a minimum, an attacker can crash the kernel, resulting in a Denial of Service (DoS).","state":"PUBLISHED","assigner":"freebsd","published_at":"2026-06-27 09:16:22","updated_at":"2026-06-27 09:16:22"},"problem_types":["CWE-125","CWE-190","CWE-681","CWE-787","CWE-125 CWE-125 Out-of-bounds Read","CWE-190 CWE-190 Integer Overflow or Wraparound","CWE-681 CWE-681 Incorrect Conversion between Numeric Types","CWE-787 CWE-787 Out-of-bounds Write"],"metrics":[],"references":[{"url":"https://security.freebsd.org/advisories/FreeBSD-SA-26:27.sound.asc","name":"https://security.freebsd.org/advisories/FreeBSD-SA-26:27.sound.asc","refsource":"secteam@freebsd.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45258","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45258","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"FreeBSD","product":"FreeBSD","version":"affected 15.0-RELEASE p10 release","platforms":[]},{"source":"CNA","vendor":"FreeBSD","product":"FreeBSD","version":"affected 14.4-RELEASE p6 release","platforms":[]},{"source":"CNA","vendor":"FreeBSD","product":"FreeBSD","version":"affected 14.3-RELEASE p15 release","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Lexpl0it, 75Acol, ch0wn, zer0duck","lang":"en"},{"source":"CNA","value":"Emmanuel Genier from Quarkslab","lang":"en"},{"source":"CNA","value":"Hazley Samsudin of GovTech CSG","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unknown","modules":["sound"],"product":"FreeBSD","vendor":"FreeBSD","versions":[{"lessThan":"p10","status":"affected","version":"15.0-RELEASE","versionType":"release"},{"lessThan":"p6","status":"affected","version":"14.4-RELEASE","versionType":"release"},{"lessThan":"p15","status":"affected","version":"14.3-RELEASE","versionType":"release"}]}],"credits":[{"lang":"en","type":"finder","value":"Lexpl0it, 75Acol, ch0wn, zer0duck"},{"lang":"en","type":"finder","value":"Emmanuel Genier from Quarkslab"},{"lang":"en","type":"finder","value":"Hazley Samsudin of GovTech CSG"}],"datePublic":"2026-06-09T23:30:00.000Z","descriptions":[{"lang":"en","value":"dsp_mmap_single() validated the requested mapping by checking the sum of the user-supplied offset and length against the buffer size.  This addition could overflow, so that a large offset and length wrapped around and passed the check.  The offset was then narrowed from 64 to 32 bits when converted to a buffer address, yielding a mapping that extended past the audio buffer into unrelated kernel memory.\n\nThe /dev/dsp device nodes are world-accessible by default.  On a system with an audio device, either issue allows an unprivileged local user to read and write kernel memory, which can be used to escalate privileges, potentially gaining full control of the affected system.  At a minimum, an attacker can crash the kernel, resulting in a Denial of Service (DoS)."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"},{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"},{"cweId":"CWE-681","description":"CWE-681 Incorrect Conversion between Numeric Types","lang":"en","type":"CWE"},{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-27T08:50:56.185Z","orgId":"63664ac6-956c-4cba-a5d0-f46076e16109","shortName":"freebsd"},"references":[{"tags":["vendor-advisory"],"url":"https://security.freebsd.org/advisories/FreeBSD-SA-26:27.sound.asc"}],"title":"Multiple vulnerabilities in the sound(4) mmap path","x_generator":{"engine":"cvelib 1.8.0"}}},"cveMetadata":{"assignerOrgId":"63664ac6-956c-4cba-a5d0-f46076e16109","assignerShortName":"freebsd","cveId":"CVE-2026-45258","datePublished":"2026-06-27T08:50:56.185Z","dateReserved":"2026-05-11T16:27:44.892Z","dateUpdated":"2026-06-27T08:50:56.185Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-27 09:16:22","lastModifiedDate":"2026-06-27 09:16:22","problem_types":["CWE-125","CWE-190","CWE-681","CWE-787","CWE-125 CWE-125 Out-of-bounds Read","CWE-190 CWE-190 Integer Overflow or Wraparound","CWE-681 CWE-681 Incorrect Conversion between Numeric Types","CWE-787 CWE-787 Out-of-bounds Write"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45258","Ordinal":"1","Title":"Multiple vulnerabilities in the sound(4) mmap path","CVE":"CVE-2026-45258","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45258","Ordinal":"1","NoteData":"dsp_mmap_single() validated the requested mapping by checking the sum of the user-supplied offset and length against the buffer size.  This addition could overflow, so that a large offset and length wrapped around and passed the check.  The offset was then narrowed from 64 to 32 bits when converted to a buffer address, yielding a mapping that extended past the audio buffer into unrelated kernel memory.\n\nThe /dev/dsp device nodes are world-accessible by default.  On a system with an audio device, either issue allows an unprivileged local user to read and write kernel memory, which can be used to escalate privileges, potentially gaining full control of the affected system.  At a minimum, an attacker can crash the kernel, resulting in a Denial of Service (DoS).","Type":"Description","Title":"Multiple vulnerabilities in the sound(4) mmap path"}]}}}