9-Year-Old Linux Kernel Flaw Enables Root Command Execution on Major Distros

Summary

A nine-year-old vulnerability in the Linux kernel, tracked as CVE-2026-46333, has been disclosed by researchers. This flaw allows unprivileged local users to execute arbitrary commands as root on major Linux distributions due to improper privilege management. The vulnerability has a CVSS score of 5.5.

IFF Assessment

FOE

This vulnerability allows an attacker to gain root privileges on affected systems, representing a significant threat to defenders.

Severity

7.1 High

The CVSS score of 5.5 indicates a moderate severity. The vulnerability allows for local privilege escalation, which has a significant impact on confidentiality, integrity, and availability.

Defender Context

Defenders should prioritize patching systems running affected Linux distributions to mitigate this privilege escalation vulnerability. It highlights the importance of ongoing vulnerability management and timely updates, even for flaws that have existed for a long time.

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