{"id":"CVE-2025-2857","state":"PUBLISHED","title":"Incorrect handle could lead to sandbox escapes","description":"Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. \nThe original vulnerability was being exploited in the wild. \n*This only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 136.0.4, Firefox ESR 128.8.1, and Firefox ESR 115.21.1.","publishedAt":"2025-03-27T13:27:57.377Z","updatedAt":"2026-06-09T16:23:02.233Z","severity":{"score":10,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.21.1","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.8.1","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"136.0.4","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1956398","https://issues.chromium.org/issues/405143032","https://www.cve.org/CVERecord?id=CVE-2025-2783","https://www.mozilla.org/security/advisories/mfsa2025-19/"],"weaknesses":["CWE-668"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/2xxx/CVE-2025-2857.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-2857","state":"PUBLISHED","datePublished":"2025-03-27T13:27:57.377Z","dateUpdated":"2026-06-09T16:23:02.233Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2025-03-27T10:54:42.071Z"},"containers":{"cna":{"title":"Incorrect handle could lead to sandbox escapes","descriptions":[{"lang":"en","value":"Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. \nThe original vulnerability was being exploited in the wild. \n*This only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 136.0.4, Firefox ESR 128.8.1, and Firefox ESR 115.21.1."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.21.1","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.8.1","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"136.0.4","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1956398"},{"url":"https://issues.chromium.org/issues/405143032","name":"CVE-2025-2783"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-2783","name":"CVE-2025-2783"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-19/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-13T14:30:19.981Z"},"credits":[{"lang":"en","value":"Andrew McCreight"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":10,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-03-28T15:23:40.271763Z","id":"CVE-2025-2857","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-668","type":"CWE","lang":"en","description":"CWE-668 Exposure of Resource to Wrong Sphere"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-09T16:23:02.233Z"}}]}}}