CVE-2023-53231: linux kernel from 4.19 (inclusive), before 6.4.7 (exclusive); +1 more affected products

CVE-2023-53231 affects linux. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00159 (percentile 0.04639), scored 20-Oct-2026. Fixed version: 6.4.11-1. Fixed version: 6.4.11-1. Fixed version: 6.1.190-1.

Affected technology

linux kernel · from 4.19 (inclusive), before 6.4.7 (exclusive)
linux

Linux · aea1286dcbbb87cf33595c2ac8b153c29a4611cb to before c3446e50fb4dc39e2dfb5951a57bc175d38f68be, aea1286dcbbb87cf33595c2ac8b153c29a4611cb to before 96bcd9650e15901201d964eef5f79d18a81daac8, aea1286dcbbb87cf33595c2ac8b153c29a4611cb to before 597fb60c75132719687e173b75cab8f6eb1ca657, aea1286dcbbb87cf33595c2ac8b153c29a4611cb to before 12d0a24afd9ea58e581ea64d64e066f2027b28d9
Linux

Linux · 4.19
Linux

Component: Not specified by the source
Function: called
File: fs/erofs/zdata.c

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

Attack conditions (Source advisory, 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. Source advisory’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

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: 0.00159 · percentile 0.04639 · 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-2023-53231.html