{"id":"CVE-2020-26972","details":"The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox \u003c 84.","modified":"2026-05-04T08:29:25.041018Z","published":"2021-01-07T14:15:11.813Z","withdrawn":"2026-05-04T08:29:25.041018Z","related":["openSUSE-SU-2024:10600-1","openSUSE-SU-2024:14572-1"],"references":[{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-54/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1671382"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26972.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"84.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}