CVE-2026-2794 — Use of Uninitialized Resource in Mozilla Firefox

CWE-908 — Use of Uninitialized Resource8 documents8 sources
Severity
7.5HIGHNVD
EPSS
0.0%
top 88.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Mozilla Firefox
Timeline
PublishedFeb 24

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

▶NVDmozilla/firefox< 148.0

🔴Vulnerability Details

3
GHSA
GHSA-m8jj-q5xq-4qhp: Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android↗2026-02-24
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OSV
CVE-2026-2794: Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android↗2026-02-24
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CVEList
Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android↗2026-02-24
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📋Vendor Advisories

3
Red Hat
firefox: Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android↗2026-02-24
▶
Debian
CVE-2026-2794: firefox - Information disclosure due to uninitialized memory in Firefox and Firefox Focus ...↗2026
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Mozilla
Mozilla Foundation Security Advisory 2026-13: CVE-2026-2794↗
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🕵️Threat Intelligence

1
Wiz
CVE-2026-2794 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-2794 — Use of Uninitialized Resource | cvebase