CVE-2026-2799
critical · 9.8Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
9.8
CVSS
0.3%
EPSS (exploit prob.)
25th
EPSS percentile
2026-02-24
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 | < 148.0 |
| mozilla | thunderbird | < 148.0 |
Check a specific version with /api/v1/cve/match.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2014551
- https://www.mozilla.org/security/advisories/mfsa2026-13/
- https://www.mozilla.org/security/advisories/mfsa2026-16/
- https://access.redhat.com/security/cve/CVE-2026-2799
- https://bugzilla.redhat.com/show_bug.cgi?id=2442303
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2799.json
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-2799