CVE-2023-53538: linux kernel 3.7; +1 more affected products

CVE-2023-53538 affects linux. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00154 (percentile 0.04101), scored 20-Oct-2026. Fixed version: 6.4.4-1. Fixed version: 6.4.4-1. Fixed version: 6.1.190-1.

Affected technology

linux kernel · from 3.7.1 (inclusive), before 6.4.4 (exclusive)
linux

linux kernel · 3.7
linux

linux kernel · 3.7 · update rc3
linux

linux kernel · 3.7 · update rc4
linux

linux kernel · 3.7 · update rc5
linux

linux kernel · 3.7 · update rc6
linux

linux kernel · 3.7 · update rc7
linux

linux kernel · 3.7 · update rc8
linux

Linux · 57911b8ba814fae01306376a0d02bc7cdc88dc94 to before 7e0ee4cb02e6b485103ecd125743b2818a68993d, 57911b8ba814fae01306376a0d02bc7cdc88dc94 to before 11f14402fe3437852cb44945b3b9f1bdb4032956, 57911b8ba814fae01306376a0d02bc7cdc88dc94 to before 5cead5422a0e3d13b0bcee986c0f5c4ebb94100b
Linux

Linux · 3.7
Linux

Component: Not specified by the source
File: fs/btrfs/ctree.c, fs/btrfs/tree-mod-log.c

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 5.5/10) 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 21-Oct-2026 15:29 UTC

CWE: CWE-476
Product: linux
CCR priority: 22.0 /100 (P4)
CVSS 3.1: 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
EPSS: 0.00154 · percentile 0.04101 · 2026-10-20
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-20 16:56:29.772392+00:00 UTC
GitHub Advisory Database · Source record · observed 2026-10-04 06:01:24.332572+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-04 05:55:03.931280+00:00 UTC
OSV.dev · Source record · observed 2026-10-21 07:07:21.683489+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2023-53538.html