{"id":"CVE-2026-109774","published":"2026-10-13T13:17:28Z","modified":"2026-10-26T20:17:46Z","title":"Invalid pointer, undefined behavior in the DOM: Notifications component","vendor":"Mozilla","product":"Firefox","tier":"core","eol":null,"description":{"text":"Invalid pointer, undefined behavior in the DOM: Notifications component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.","provenance":"source","from":"NVD"},"summary":{"text":"Mozilla Firefox has an invalid pointer and undefined behavior flaw (classified as access of an uninitialized pointer) in the DOM Notifications component. An attacker with network access can trigger it without authentication or user interaction, which can lead to high impact on confidentiality, integrity and availability.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:24:53Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.00342,"percentile":0.27683,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":9,"pulses":[{"name":"Known_Cve | Oct 22, 2026 | Part 1/4","url":"https://otx.alienvault.com/pulse/6ad8d340ce8bef7ffa79b89b","created":"2026-10-21"},{"name":"Known_Cve | Oct 21, 2026 | Part 2/4","url":"https://otx.alienvault.com/pulse/6ad7813c340f998d3db4d0bb","created":"2026-10-20"},{"name":"Known_Cve | Oct 20, 2026 | Part 2/4","url":"https://otx.alienvault.com/pulse/6ad62f708ed98220bccde9c8","created":"2026-10-19"},{"name":"Known_Cve | Oct 19, 2026 | Part 2/4","url":"https://otx.alienvault.com/pulse/6ad4ddae89608f8a66f58915","created":"2026-10-18"},{"name":"Known_Cve | Oct 18, 2026 | Part 2/4","url":"https://otx.alienvault.com/pulse/6ad38c2e0aa0d5de6ee8bb52","created":"2026-10-17"},{"name":"Known_Cve | Oct 17, 2026 | Part 2/4","url":"https://otx.alienvault.com/pulse/6ad23ab69d40bd72818ecdae","created":"2026-10-16"},{"name":"Known_Cve | Oct 16, 2026 | Part 2/3","url":"https://otx.alienvault.com/pulse/6ad0e93a078e6220a69919cf","created":"2026-10-15"},{"name":"Known_Cve | Oct 15, 2026 | Part 2/3","url":"https://otx.alienvault.com/pulse/6acf9878b4135e4a2037eb34","created":"2026-10-14"},{"name":"Known_Cve | Oct 14, 2026 | Part 3/3","url":"https://otx.alienvault.com/pulse/6ace46861569c0833e65dba1","created":"2026-10-13"}],"provenance":"machine"},"cwes":[{"id":"CWE-824","name":"Access of Uninitialized Pointer"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2067657","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-109/","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-98534","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-98534","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2026-10-13","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109774","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":14.7,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":5.54,"detail":"percentile 0.2768"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":2.27,"detail":"9 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}