AUGUST 4, 2026
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Case File

CVE-2025-40158

HIGH · CVSS 8.1 EPSS 0.43%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-11-12 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It affects Linux.

CVE
CVE-2025-40158
Severity
HIGH
CVSS
8.1
EPSS
0.43%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6_output() Use RCU in ip6_output() in order to use dst_dev_rcu() to prevent possible UAF. We can remove rcu_read_lock()/rcu_read_unlock() pairs from ip6_finish_output2().