cve.bz

CVE-2026-4684

7.5 highEPSS 0.4%

High (7.5) in mozilla firefox. EPSS 0.4% chance of exploitation in the next 30 days.

Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-31)
CWEs
CWE-362, CWE-416, CWE-364
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON