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Vulnerability record · CVE-2026-2794 · published 24 February 2026

CVE-2026-2794: Mozilla firefox use of uninitialized resource vulnerability

Mozilla · Firefox

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

7.5 CVSS 3.1 High EPSS 0.48% · top 61.4% CWE-908 · Use of uninitialized resource
7.5CVSS 3.1 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
15 Jul 2026Last modified by NVD

Description

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

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.mozilla.org/show_bug.cgi?id=2008365 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-13/ Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-2794
https://bugzilla.redhat.com/show_bug.cgi?id=2442286
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2794.json

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-2794), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.