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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "matchCriteriaId": "4BA097AB-46D1-4C4E-9856-9109237940C3", "versionEndExcluding": "128.11.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "1495D4C0-92D7-4384-8730-B59560AD0BEE", "versionEndExcluding": "128.11.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.11."}, {"lang": "es", "value": "Error de seguridad de memoria presente en Firefox ESR 128.10 y Thunderbird 128.10. Este error mostr\u00f3 evidencia de corrupci\u00f3n de memoria y presumimos que, con suficiente esfuerzo, podr\u00eda haberse explotado para ejecutar c\u00f3digo arbitrario. Esta vulnerabilidad afecta a Firefox ESR &lt; 128.11."}], "id": "CVE-2025-5269", "lastModified": "2025-05-30T01:15:10.063", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-05-27T13:15:22.717", "references": [{"source": "[email protected]", "tags": ["Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1924108"}, {"source": "[email protected]", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2025-44/"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2025:8308", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:128.11.0-1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-05-29T00:00:00Z"}, {"advisory": "RHSA-2025:8293", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "firefox-0:128.11.0-1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-29T00:00:00Z"}], "bugzilla": {"description": "firefox: thunderbird: Memory safety bug", "id": "2368757", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2368757"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-119", "details": ["Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.11.", "A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: This bug shows evidence of memory corruption and we presume that with enough effort this could be exploited to run arbitrary code."], "name": "CVE-2025-5269", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "rhel10/firefox-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "rhel10/thunderbird-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"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"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-27T12:29:27Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-5269\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-5269\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2025-44/#CVE-2025-5269\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2025-46/#CVE-2025-5269"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Moderate"}