OCTOBER 7, 2026
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Case File

CVE-2026-92489

CRITICAL · CVSS 9.8 EPSS 0.67%

Source: NVD + CISA KEV + EPSS · Published 2026-09-17 · Last synced 2026-10-07

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's xfrm module, specifically in the xfrm_dev_direct_output() function, which improperly handles socket buffers (skbs) leading to a potential double-free condition. This flaw can result in memory corruption, which may be exploited to execute arbitrary code or cause denial-of-service conditions. Linux system administrators and developers should prioritize this issue to mitigate potential security risks associated with kernel-level vulnerabilities.

CVE
CVE-2026-92489
Severity
CRITICAL
CVSS
9.8
EPSS
0.67%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix skb double-free in xfrm_dev_direct_output() A return value other than 1 from local_out() means that the skb has been consumed or its ownership was transferred. xfrm_dev_direct_output() nevertheless frees the skb on this path, causing a double-free when netfilter drops the packet and invalidating any other owner. Return the local_out() result directly, matching the ownership handling in xfrm_output_resume().