CVE-2023-0266
Linux Kernel Use-After-Free Vulnerability
n/a
CVSS
3.7%
EPSS (exploit prob.)
88.6%
EPSS percentile
Yes
Actively exploited
No
Ransomware use
2023-03-30
Added
Summary
Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.
Affected software
Vendor: Linux · Product: Kernel
Weakness types (CWE):
CWE-416
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Linux
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2026-31431 | Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability | 94.5% | Yes |
| CVE-2022-0847 | Linux Kernel Privilege Escalation Vulnerability | 88.6% | Yes |
| CVE-2016-5195 | Linux Kernel Race Condition Vulnerability | 83.0% | Yes |
| CVE-2021-22555 | Linux Kernel Heap Out-of-Bounds Write Vulnerability | 78.7% | Yes |
| CVE-2019-13272 | Linux Kernel Improper Privilege Management Vulnerability | 52.2% | Yes |
| CVE-2013-2094 | Linux Kernel Privilege Escalation Vulnerability | 47.7% | Yes |
| CVE-2021-3493 | Linux Kernel Privilege Escalation Vulnerability | 44.0% | Yes |
| CVE-2013-6282 | Linux Kernel Improper Input Validation Vulnerability | 39.7% | Yes |
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