{"id":"CVE-2025-2817","state":"PUBLISHED","title":"Privilege escalation in Thunderbird Updater","description":"Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.","publishedAt":"2025-04-29T13:13:33.783Z","updatedAt":"2026-04-13T14:27:13.873Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.23","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1917536","https://www.mozilla.org/security/advisories/mfsa2025-28/","https://www.mozilla.org/security/advisories/mfsa2025-29/","https://www.mozilla.org/security/advisories/mfsa2025-30/","https://www.mozilla.org/security/advisories/mfsa2025-31/","https://www.mozilla.org/security/advisories/mfsa2025-32/","https://lists.debian.org/debian-lts-announce/2025/05/msg00022.html"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/2xxx/CVE-2025-2817.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-2817","state":"PUBLISHED","datePublished":"2025-04-29T13:13:33.783Z","dateUpdated":"2026-04-13T14:27:13.873Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2025-03-26T14:08:36.146Z"},"containers":{"cna":{"title":"Privilege escalation in Thunderbird Updater","descriptions":[{"lang":"en","value":"Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.23","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.10","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"138","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1917536"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-28/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-29/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-30/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-31/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-32/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-13T14:27:13.873Z"},"credits":[{"lang":"en","value":"Dong-uk Kim (@justlikebono)"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-2817","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-04-30T03:56:27.621494Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","type":"CWE","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T18:27:57.172Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00022.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T19:46:41.197Z"}}]}}}