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CVE-2026-6749

7.5 high SSVC exploitation: none Modified
NVD · CVE.org

Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Fix

Patch, vendor advisory and mitigation references on NVD 5

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · mozillaNVD modified 2026-10-25 23:10

Affected (CPE criteria) 3

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*

References 36