CVE-2026-98255

Public on 2026-10-06
Modified on 2026-10-13
Description
In the Linux kernel, the following vulnerability has been resolved:

tcp: exclude old ACKs from tcp fast path
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
5.9
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core kernel Pending Fix
Amazon Linux 2 - Kernel-5.4 Extra kernel Pending Fix
Amazon Linux 2 - Kernel-5.10 Extra kernel 2026-10-28 ALAS2KERNEL-5.10-2026-136 Fixed
Amazon Linux 2 - Kernel-5.15 Extra kernel 2026-10-24 ALAS2KERNEL-5.15-2026-119 Fixed
Amazon Linux 2023 kernel 2026-10-29 ALAS2023-2026-3336 Fixed
Amazon Linux 2023 kernel6.12 2026-10-29 ALAS2023-2026-3335 Fixed
Amazon Linux 2023 kernel6.18 2026-10-12 ALAS2023-2026-3192 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N