CVE-2026-16351
critical · 9.8Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
9.8
CVSS
0.4%
EPSS (exploit prob.)
33rd
EPSS percentile
2026-07-21
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| mozilla | firefox | < 115.38.0 |
| mozilla | firefox | < 153.0.0 |
| mozilla | firefox | >= 128.1.0, < 140.13.0 |
| mozilla | thunderbird | < 140.13.0 |
| mozilla | thunderbird | >= 141.0, < 153.0 |
Check a specific version with /api/v1/cve/match.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2045468
- https://www.mozilla.org/security/advisories/mfsa2026-68/
- https://www.mozilla.org/security/advisories/mfsa2026-69/
- https://www.mozilla.org/security/advisories/mfsa2026-70/
- https://www.mozilla.org/security/advisories/mfsa2026-71/
- https://www.mozilla.org/security/advisories/mfsa2026-72/
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-16351