CVE-2026-8953
critical · 9.6Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
9.6
CVSS
0.5%
EPSS (exploit prob.)
44th
EPSS percentile
2026-05-19
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weaknesses
CWE-416
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| mozilla | firefox | < 115.36.0 |
| mozilla | firefox | < 151.0.0 |
| mozilla | firefox | >= 140.0, < 140.11.0 |
| mozilla | thunderbird | < 140.11 |
Check a specific version with /api/v1/cve/match.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2029511
- https://www.mozilla.org/security/advisories/mfsa2026-46/
- https://www.mozilla.org/security/advisories/mfsa2026-47/
- https://www.mozilla.org/security/advisories/mfsa2026-48/
- https://www.mozilla.org/security/advisories/mfsa2026-50/
- https://www.mozilla.org/security/advisories/mfsa2026-51/
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-8953