Information disclosure due to incorrect boundary conditions in the Graphics: CanvasWebGL component

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-74946 · Microsoft / collected KEV context

cve-program · CVE-2026-74946

• https://bugzilla.mozilla.org/show_bug.cgi?id=2059997
• https://www.mozilla.org/security/advisories/mfsa2026-74/
• https://www.mozilla.org/security/advisories/mfsa2026-75/
• https://www.mozilla.org/security/advisories/mfsa2026-76/
• https://www.mozilla.org/security/advisories/mfsa2026-77/
• https://www.mozilla.org/security/advisories/mfsa2026-78/
• https://www.mozilla.org/security/advisories/mfsa2026-79/
• https://www.mozilla.org/security/advisories/mfsa2026-80/

• Information disclosure due to incorrect boundary conditions in the Graphics: CanvasWebGL component · Advisory content revised · 28 Oct 2026