CVE-2025-39702

HIGH

Linux Kernel - Observable Timing Discrepancy in IPv6 Segment Routing MAC Comparison

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

References (9)

Core 9

Scores

CVSS v3 7.0
EPSS 0.0015
EPSS Percentile 4.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-203
Status published
Products (25)
debian/debian_linux 11.0
linux/Kernel 4.10.0 - 5.10.249linux
linux/Kernel 5.11.0 - 5.15.190linux
linux/Kernel 5.16.0 - 6.1.149linux
linux/Kernel 6.13.0 - 6.16.4linux
linux/Kernel 6.2.0 - 6.6.103linux
linux/Kernel 6.7.0 - 6.12.44linux
Linux/Linux < 4.10
Linux/Linux 4.10
Linux/Linux 5.10.249 - 5.10.*
... and 15 more
Published Sep 05, 2025
Tracked Since Feb 18, 2026