What is CVE-2022-26485?

CVE-2022-26485 is a vulnerability in Mozilla Firefox. Published 2022-12-22.

Is CVE-2022-26485 known to be exploited?

Yes. CVE-2022-26485 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-07), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.

Vulnerability in Mozilla Firefox

CVE-2022-26485

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 And…

EPSS: 0.029 (86.5th percentile) — read the EPSS interpretation.

Affected products

Mozilla Firefox — versions unspecified
Mozilla Firefox Esr — versions unspecified
Mozilla Firefox For Android — versions unspecified
Mozilla Focus — versions unspecified
Mozilla Thunderbird — versions unspecified

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-07. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-03-21.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-26485?: CVE-2022-26485 is a vulnerability in Mozilla Firefox. Published 2022-12-22.
Is CVE-2022-26485 known to be exploited?: Yes. CVE-2022-26485 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-07), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.