CVE-2022-3266

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{"affected": [{"affectedData": [{"product": "Firefox ESR", "vendor": "Mozilla", "versions": [{"lessThan": "102.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "102.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "105", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "B117A240-56A6-4045-93C4-09722ED3A3B8", "versionEndExcluding": "105.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "matchCriteriaId": "D7DB7A5C-E118-4ABD-AE52-33AAA899B36D", "versionEndExcluding": "102.3", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "E9DE429C-DF44-4398-8358-16F6126599E0", "versionEndExcluding": "102.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105."}, {"lang": "es", "value": "Puede ocurrir una lectura fuera de los l\u00edmites al decodificar video H264. Esto da como resultado un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ESR &lt; 102.3, Thunderbird &lt; 102.3 y Firefox &lt; 105."}], "id": "CVE-2022-3266", "lastModified": "2026-06-17T04:59:11.303", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-3266", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-15T15:57:13.321294Z", "version": "2.0.3"}}]}, "published": "2022-12-22T20:15:38.500", "references": [{"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1767360"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-40/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-41/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-42/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1767360"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-40/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-41/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-42/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1767360"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Willy R. Vasquez at UT Austin as the original reporter.", "affected_release": [{"advisory": "RHSA-2022:6710", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:102.3.0-3.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6711", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:102.3.0-6.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6702", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:102.3.0-6.el8_6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6708", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:102.3.0-3.el8_6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6703", "cpe": "cpe:/a:redhat:rhel_e4s:8.1", "package": "firefox-0:102.3.0-6.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6716", "cpe": "cpe:/a:redhat:rhel_e4s:8.1", "package": "thunderbird-0:102.3.0-3.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6707", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "firefox-0:102.3.0-6.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6715", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "thunderbird-0:102.3.0-3.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6701", "cpe": "cpe:/a:redhat:rhel_eus:8.4", "package": "firefox-0:102.3.0-6.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6713", "cpe": "cpe:/a:redhat:rhel_eus:8.4", "package": "thunderbird-0:102.3.0-3.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6700", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "firefox-0:102.3.0-6.el9_0", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2022-09-26T00:00:00Z"}, {"advisory": "RHSA-2022:6717", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "thunderbird-0:102.3.0-3.el9_0", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2022-09-26T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Out of bounds read when decoding H264", "id": "2157739", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2157739"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-125", "details": ["An out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.", "The Mozilla Foundation Security Advisory describes this flaw as:\nAn out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash."], "name": "CVE-2022-3266", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2022-09-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-3266\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-3266\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2022-41/#CVE-2022-3266\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2022-42/#CVE-2022-3266"], "threat_severity": "Important"}

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