CVE-2026-2794

Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android

State: Published
Severity: 6.5 Medium
Published: Feb 24, 2026
Updated: Jul 15, 2026
Reserved: Feb 19, 2026

Description

Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 148.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	CISA-ADP
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	redhat-SADP

Weaknesses

CWE-908 Use of Uninitialized Resource

Affected Products

Product	Versions
FirefoxMozilla	148 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2008365
https://www.mozilla.org/security/advisories/mfsa2026-13/
https://access.redhat.com/security/cve/CVE-2026-2794vdb-entry
RHBZ#2442286issue-tracking
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2794.json

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