ACTIVELY EXPLOITED
CVE-2023-0266: Linux Kernel Use-After-Free Vulnerability
| Vendor | Linux |
|---|---|
| Product | Kernel |
| Actively exploited | Yes |
| Added to CISA KEV | 30 Mar 2023 |
| CISA federal deadline | 20 Apr 2023 |
| Weakness (CWE) | CWE-416 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.
SOURCES
Other Linux flaws
- CVE-2026-46300: Linux Kernel Missing Initialization of a Variable Vulnerability
- CVE-2026-53266: Linux Kernel Out-of-Bounds Write Vulnerability
- CVE-2025-39964: Linux Kernel Race Condition Vulnerability
- CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
- CVE-2026-53362: Linux Kernel Unspecified Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.