CVE-2026-80637

7.5 Élevée

Publiée le 28/08/2026 à 10:16 · Modifiée le 21/10/2026 à 15:19 · Reçue · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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().

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Produits concernés

Linux

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.5 Élevée	416baaa9-dc9f-4396-8d5f-8c081fb06d67	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Références

https://git.kernel.org/stable/c/2b8e7aaa38002d8ee2f48d87b1f392eadd8e98c4
https://git.kernel.org/stable/c/5c9c67cf7a3d16051dfb90e98836f530964dfb8e
https://git.kernel.org/stable/c/95cda0446f51077c343fdd8264be2737eb25a6c3
https://git.kernel.org/stable/c/992c20bc8a4aba220c8b95b467d049289778dad6
https://git.kernel.org/stable/c/ea3d2caa5bfacf5db5c1cad521ca5d9144edd9a7

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories