CVE-2022-26485 KEV
8.8
HIGH · CVSS 3.1 · EPSS 14.3% (pctl 96)
Patch first
On CISA KEV — known exploited in the wild, due 2022-03-21.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 14.26% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-416 |
| On CISA KEV | yes — remediate by 2022-03-21 |
| Public exploit | none known |
| Published | 2022-12-22 |
| Last modified | 2026-08-19 |
CISA KEV
| Name | Mozilla Firefox Use-After-Free Vulnerability |
|---|---|
| Added | 2022-03-07 |
| Due | 2022-03-21 |
| Vendor / product | Mozilla / Firefox |
| Ransomware use | none reported |
Affected (4)
| Vendor | Product |
|---|---|
| mozilla | firefox |
| mozilla | firefox focus |
| mozilla | firefox mobile |
| mozilla | thunderbird |
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
→ the Explorer · watch your stack · NVD