CVE-2022-26485 on CISA KEV

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 <

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2022-09/
• bugzilla.mozilla.org — https://bugzilla.mozilla.org/show_bug.cgi?id=1758062

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Mozilla	Firefox	unspecified
Mozilla	Firefox ESR	unspecified
Mozilla	Firefox for Android	unspecified
Mozilla	Thunderbird	unspecified
Mozilla	Focus	unspecified

06Detection

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