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CVE-2023-3269

HighPublished

Distros-[dirtyvma] privilege escalation via non-rcu-protected vma traversal

Published: Jul 11, 2023
Updated: Mar 5, 2025
Assigning CNA: redhat
Evidence observed: Aug 8, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS probability estimate

1.3%

Low · next 30 days

Percentile: 68.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A vulnerability exists in the memory management subsystem of the Linux kernel. The lock handling for accessing and updating virtual memory areas (VMAs) is incorrect, leading to use-after-free problems. This issue can be successfully exploited to execute arbitrary kernel code, escalate containers, and gain root privileges.

Sources

StackRotExploit
CVE-2023-3269: Linux kernel privilege escalation vulnerability

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