CVE-2026-117883
Severity not reportedData quality: partial.
Some fields were not provided by the source.
Use-after-free in the DOM: HTML Parser component.
Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVSS
—
Not reported by the source
Timeline (UTC)
Published: 2026-10-27 14:16
Modified: 2026-10-27 19:17
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-28 11:30 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2076271 security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-118/ security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-119/ security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-120/ security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-121/ security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-122/ security@mozilla.org
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 11:30 UTC · record ↗