Skip to content
CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-12289

Privilege escalation in the Graphics: WebRender component

Description

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox

  • 115.37 to ≤ 115.*unaffected
  • 140.12 to ≤ 140.*unaffected
  • 152 to ≤ *unaffected

Mozilla Thunderbird

  • 140.12 to ≤ 140.*unaffected
  • 152 to ≤ *unaffected

References