CVE-2022-26485
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- 2022-03-07 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2022-03-21 Remediation deadlineCISA's due date for federal agencies to fix it
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 14.3% in the next 30 days (EPSS).
- Severity: 8.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2022-03-07
- Exploit probability
- 14.3% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Analyzed
Affected
- Mozilla Firefox < 91.6.1
- Mozilla Firefox < 97.0.2
- Mozilla Firefox Focus < 97.3.0
- Mozilla Firefox Mobile < 97.3.0
- Mozilla Thunderbird < 91.6.2
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-26485.md and follow it. Check whether this project is affected by CVE-2022-26485. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://bugzilla.mozilla.org/show_bug.cgi?id=1758062
- https://www.mozilla.org/security/advisories/mfsa2022-09/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1758062
- https://www.mozilla.org/security/advisories/mfsa2022-09/
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1758062
- https://www.mozilla.org/security/advisories/mfsa2022-09/
- 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