CVE-2026-6747

HIGH

thunderbird security update

Details

CVSS v3: 7.5
NVD published: 2026-04-21 13:16:20
EPSS: <0.1% probability · 18.9th percentile — 2026-05-06
Affected versions: cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
Summary: Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Remediation: Not available in our cache.
Exploit info: Not available in our cache.

TopVuln sends digest emails with high-risk CVE picks across multiple authoritative sources—curated with EPSS and AI. Choose daily per-stream emails and optional weekly or monthly roundups.

Subscribe — free email digest or paid plan

Information is aggregated from multiple authoritative sources for convenience; verify with NVD and vendors before operational decisions.