{"id":"CVE-2026-16359","published":"2026-07-21T12:38:07Z","modified":"2026-07-22T19:18:58Z","title":"Incorrect boundary conditions in the Audio/Video: GMP component","vendor":"Mozilla","product":"Firefox","tier":"tail","description":{"text":"Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.","provenance":"source","from":"CVE.org"},"cvss":{"score":9.1,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.00469,"percentile":0.4048,"provenance":"source"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2045424","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-68/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-69/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-70/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-71/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-72/","tags":[]}],"priority":{"score":14.5,"factors":[{"name":"EPSS percentile","points":8.1},{"name":"CVSS severity","points":6.37}]},"vendorSlug":"mozilla","euvd":{"id":"EUVD-2026-46231","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-mozilla-firefox-cwe-119"}}