VDB
CVE-2026-92052
CVE-2026-92052
PUBLISHED
CVSS 8.8 HIGH
Reported by mozilla · Published September 15, 2026
Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
Risk Scores
CVSS 3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | 153.3, 156 |
| Mozilla | Thunderbird | 153.3, 156 |
| Mozilla | Firefox | 153.3, 156, 153.3 |
| Mozilla | Thunderbird | 153.3, 156, 156 |
Timeline
- Sep 15, 2026 Coalition ESS Score
- Sep 15, 2026 CVE Published
- Sep 16, 2026 EPSS Score
- Sep 16, 2026 CVE Updated
- Sep 18, 2026 EPSS Score