Is CVE-2022-26485 actively exploited?

CVE-2022-26485 has no public evidence of in-the-wild exploitation as of 2025-11-04.

What is the CVSS score for CVE-2022-26485?

CVE-2022-26485 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2022-26485?

Patch guidance is available from mozilla security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-26485.

Fix CVE-2022-26485 - HIGH mozilla firefox

Q: Which products are affected by CVE-2022-26485?

5 products: mozilla firefox, mozilla firefox, mozilla firefox, mozilla firefox focus, mozilla thunderbird.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: MOZILLA
Published: 12/22/2022
Last Modified: 11/4/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mozilla : firefoxmozilla : firefoxmozilla : firefoxmozilla : firefox_focusmozilla : thunderbird

Remediation Guidance

Executive Summary

View on NIST NVD