Known exploited vulnerability
CVE-2022-26486
The short answer
CVE-2022-26486 affects Mozilla Firefox and is rated critical (CVSS 9.6). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-07: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-416.
Severity
9.6 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Mar 7, 2022
Federal due date Mar 21, 2022
EPSS, next 30 days
2.4%
Higher than 84% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
Firefox, Firefox ESR, Firefox for Android, Thunderbird, Focus. NVD's record lists the exact affected versions.
References
- bugzilla.mozilla.org/show_bug.cgi?id=1758070 ExploitIssue TrackingVendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-09/ ExploitVendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1758070 ExploitIssue TrackingVendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-09/ ExploitVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26486 US Government Resource
Questions
Is CVE-2022-26486 being exploited?
Yes. CISA added CVE-2022-26486 to its Known Exploited Vulnerabilities catalog on 2022-03-07, with a federal remediation due date of 2022-03-21.
How do I fix CVE-2022-26486?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
Related
Latest CVEs this week
Critical and High CVEs from the last 7 days, with KEV and EPSS.
Exploited vulnerabilities by vendor
Every vendor in CISA's KEV catalog, with its count.
Mozilla exploited vulnerabilities
Everything CISA lists as exploited for Mozilla.
Vulnerability watch
A briefing and a fix pull request when an advisory hits your dependencies.
Know the day a CVE lands in your code
Connect a GitHub repository and ZeusQA checks its dependencies daily, briefs each advisory and opens the fix. Three test runs free, no card.