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CVE-2023-0266: Linux Kernel Use-After-Free Vulnerability
Linux Kernel · in CISA KEV since 2023-03-30
2023-03-30added to KEV
2023-04-20federal remediation due date
3.70%EPSS exploit probability (30 days) 89.3th percentile
7 HIGHCVSS 3.1
Unknownknown ransomware use
59days from NVD publication to KEV
What it is
Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-416 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2023-01-30 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2023-0266.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.