CVE-2022-26485
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
14.3%
96.4th percentile
CISA KEV
Listed
Added 2022-03-07 · patch by 2022-03-21
Weakness / dates
CWE-416
Published 2022-12-22 · modified 2026-08-19
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.
Affected
References
- exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1758062
- https://www.mozilla.org/security/advisories/mfsa2022-09/
- exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1758062
- https://www.mozilla.org/security/advisories/mfsa2022-09/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26485