March 30, 2023 · Applied Cybernetics Group
CVE-2023-0266 — Linux Kernel
Linux Kernel Use-After-Free Vulnerability
- Added to KEV
2023-03-30- Federal due date
2023-04-20- Vendor
- Linux
- Product
- Kernel
- EPSS
- 89.2th percentile (score 0.037, as of
2026-09-16) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2023-0266
CISA short description
Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.
Required action
Apply updates per vendor instructions.