CVE-2022-26485
Mozilla Firefox: Use-After-Free
As of , CVE-2022-26485 in Mozilla Firefox is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.
- Exploited
- Yes: CISA listed it on 7 March 2022
- US federal deadline
- 21 March 202214 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.14Higher than 96% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- No score that dayThe EPSS file of the day CISA listed it has no score for it.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Mozilla Firefox contains a use-after-free vulnerability in XSLT parameter processing which can be exploited to perform arbitrary code execution.
CISA's 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.
The CVE record's description, from mozilla
- CVE published
- 22 December 2022
- Assigned by
- mozilla
- CVSS
- 8.8 High (CVSS 3.1, from CISA-ADP)
- CWE-416
- Use After Free
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
- The CVE record was published.
Firefox: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2015-4495Security Feature Bypass | Mozilla Firefox | Patch this weekMetasploit module; EPSS 0.69 | 0.69 | ||
| CVE-2024-9680Use-After-Free | Mozilla Firefox | Patch this weekRansomware use | 0.23 | ||
| CVE-2013-1675Information Disclosure | Mozilla Firefox | Patch soon | 0.07 | ||
| CVE-2022-26486Use-After-Free | Mozilla Firefox | Patch soon | 0.02 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org