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CVE-2026-31539: linux kernel from 6.18 (inclusive), before 6.18.11 (exclusive), from 6.19 (inclusive), before 6.19.1 (exclusive); +1…

CVE-2026-31539. CVSS 3.1 base score 7.5 (HIGH, Source advisory). EPSS 0.00426 (percentile 0.35357), scored 15-Oct-2026.

Affected technology

linux kernel · from 6.18 (inclusive), before 6.18.11 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.1 (exclusive)
linux

Linux · 5fb9b459b3686e366640edd4e62805ef7b4de927 to before e811e60e1cc79923c4388146eb1fa26a7482731e, 5fb9b459b3686e366640edd4e62805ef7b4de927 to before f99996870222b598914a1f49d7375dc23752c237, 5fb9b459b3686e366640edd4e62805ef7b4de927 to before 6e3c5052f9686192e178806e017b7377155f4bab
Linux

Linux · 6.18
Linux

Component: Not specified by the source
File: fs/smb/common/smbdirect/smbdirect_socket.h

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published

CCR priority
30.1 /100 (P4)
CVSS 3.1
7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Source advisory
EPSS
0.00426 · percentile 0.35357 · 2026-10-15
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2026-31539.html