CVE-2022-26485

8.8 HIGH CISA KEV - Actively Exploited
Published: December 22, 2022 Modified: November 04, 2025

Description

Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1758062
Source: security@mozilla.org
Exploit Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-09/
Source: security@mozilla.org
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1758062
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-09/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26485
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
7.1%
91th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-03-21

Weaknesses (CWE)

Affected Vendors

mozilla