← All CVEs

CVE-2026-6748

critical · 9.8

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

9.8
CVSS
0.4%
EPSS (exploit prob.)
34th
EPSS percentile
2026-04-21
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-457CWE-824

Affected products

VendorProductAffected versions
mozillafirefox< 140.10.0
mozillafirefox< 150.0
mozillathunderbird< 140.10.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-6748