CVE-2021-29963

概要

参考情報

• bugzilla.mozilla.org/show_bug.cgi · Permissions Required
• mozilla.org/security/advisories/mfsa2021-23 · Release Notes

firefox のその他の脆弱性

• CVE-2026-106016緊急 9.8Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1 and Thunderbird 158.
• CVE-2026-96869中 4.3Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, …
• CVE-2026-100832高 8.8Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 140.17, Thunderbird 153.4…
• CVE-2026-100831高 8.8Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunder…
• CVE-2026-100830高 8.1Mitigation bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, a…