CVE Catalog
CVE-2026-74973
MediumCVSS 4.2Exploitation Probability (EPSS)
Low risk0.19%
9th percentile - higher than 9% of all known CVEs
Summary
Race condition, use-after-free in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Risk Assessment
Use-after-free could lead to browser crashes or potentially arbitrary code execution, potentially exposing the user to attacks.
Recommendation
Update Firefox or Thunderbird to a version containing the fix.
Original NVD description (English source)
Race condition, use-after-free in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.