CVE-2022-26485: Mozilla Firefox Use-After-Free Vulnerability
CVE-2022-26485 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-03-07
Mozilla Firefox and related products contain a use-after-free vulnerability in XSLT parameter processing. Removing an XSLT parameter during processing can lead to memory corruption, which may be exploited to achieve arbitrary code execution.
Yes. CVE-2022-26485 is known to be exploited in the wild, first recorded on 7 March 2022. Treat it as urgent.
How severe is CVE-2022-26485?
Critical severity, with a CVSS score of 8.8, published 7 March 2022.
Which products and versions are affected?
Mozilla Firefox < 97.0.2; Mozilla Firefox ESR < 91.6.1; Mozilla Firefox for Android < 97.3.0; Mozilla Thunderbird < 91.6.2; and 1 more.
Is there a fix for CVE-2022-26485?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2022-26485 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2022-26485?
Check whether you run Mozilla Firefox, Mozilla Firefox ESR or Mozilla Thunderbird. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Mozilla Firefox < 97.0.2
Mozilla Firefox ESR < 91.6.1
Mozilla Firefox for Android < 97.3.0
Mozilla Thunderbird < 91.6.2
Mozilla Focus < 97.3.0
Timeline
2022-03-07: disclosed: Vulnerability published and added to CISA KEV catalog.
2022-03-07: kev added
2022-03-07: exploited: Reports of attacks in the wild abusing this flaw.