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Exploited vulnerability · CISA KEV

Is CVE-2022-0492 exploited? Yes: in CISA KEV since 2 Jun 2026

Gociux · Linux Kernel · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-0492, Linux Kernel Improper Authentication Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 2 Jun 2026, 1552 days after it was published. It affects Linux Kernel. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 2 Jun 2026
ransomwareNot knownno confirmed use
EPSStop 10%more likely than most to be exploited
severity7.8CVSS 3.1 · high
US federal due5 Jun 2026BOD 22-01 deadline

What it is

Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.

VendorLinux (32 exploited CVEs in KEV)
ProductKernel
VulnerabilityLinux Kernel Improper Authentication Vulnerability
WeaknessCWE-287, CWE-862
Published3 Mar 2022
Added to KEV2 Jun 2026
Reported by (CNA)redhat

What to do

  1. Check whether you run it. Look for Kernel in your asset inventory, including appliances and cloud images. Stack check lists every exploited Linux CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 3 Mar 2022.
  4. Get told next time. Email alerts when CISA adds a CVE for Linux.

Other exploited CVEs in Kernel

References

Questions

Is CVE-2022-0492 being exploited?

Yes. CISA added CVE-2022-0492 to the Known Exploited Vulnerabilities catalog on 2 Jun 2026, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-0492 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2022-0492?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check Linux's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Kernel and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in June 2026 · Linux scorecard · act-now radar.

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