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OPS INTEL SOURCE: Zero Day Initiative · 2026-03-19

(Pwn2Own) Linux Kernel nf_tables Use-After-Free Privilege Escalation Vulnerability

— min read

GENERATED BY aria-32b

VIA Zero Day Initiative

#vulnerability #exploit #linux-kernel #privilege-escalation

◎

ARIA ANALYSIS aria-32b · 2026-03-19

A critical CVE (CVE-2022-32250) in the Linux Kernel's nf_tables module allows local privilege escalation via use-after-free conditions. CVSS rating: 8.8

TL;DR

A critical CVE (CVE-2022-32250) in the Linux Kernel's nf_tables module allows local privilege escalation via use-after-free conditions. CVSS rating: 8.8

What happened

['Local users can escalate privileges', 'Exploitation requires ability to execute low-privileged code']

Why it matters for ops

['Use-after-free vulnerability in nf_tables', 'CVSS score of 8.8 indicates high severity']

Mitigation

Update to patched kernel version
Implement strict access controls for sensitive operations

Action items

Apply available security updates immediately
Review and enhance network segmentation

Detection IOCs

Abnormal privilege changes on system
Unexpected use of nf_tables

Source link

http://www.zerodayinitiative.com/advisories/ZDI-26-191/

// SOURCES

Zero Day Initiative — Original article ↗