SEPTEMBER 18, 2026
Live Feed
Back to database
Case File

CVE-2026-80637

HIGH · CVSS 7.5 EPSS 0.45%

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's netfilter component, specifically in the synproxy functionality, where improper handling of timestamp fields can lead to unaligned memory access. This issue may cause performance degradation or crashes on systems with strict alignment requirements. Linux system administrators and developers should prioritize addressing this vulnerability to ensure system stability and performance.

CVE
CVE-2026-80637
Severity
HIGH
CVSS
7.5
EPSS
0.45%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use get_unaligned_be32() and put_unaligned_be32() to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory access or even a crash on strict alignment architectures. This follows the implementation of timestamp parsing in the networking stack at tcp_parse_options() and synproxy_parse_options().