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CVE-2023-0266

CISA KEV

Published March 30, 2023 · Updated April 3, 2026

high
Official Description+

Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.

Affected Products

VendorProduct
LinuxKernel

Patch Status

Patch by 2023-04-20

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2023-0266.