CVE-2022-26486
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
9.6
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
2.3%
82.9th 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
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | R | Required |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2022-12-22 — Published (NVD)
- 2022-03-07 — Added to CISA KEV (actively exploited)
- 2022-03-21 — CISA patch-by deadline
- 2026-08-19 — Last modified (NVD)
Description
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. 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=1758070
- exploit https://www.mozilla.org/security/advisories/mfsa2022-09/
- exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1758070
- exploit https://www.mozilla.org/security/advisories/mfsa2022-09/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26486