CVE-2025-40198

CVE-2025-40198

High · published November 13, 2025

CVSS v3.1
7.8
EPSS
0%
Percentile
5.3
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()

Unlike other strings in the ext4 superblock, we rely on tune2fs to

make sure s_mount_opts is NUL terminated. Harden

parse_apply_sb_mount_options() by treating s_mount_opts as a potential

__nonstring.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00164 · 5.3th percentile
Published
2025-11-13T03:15Z
References (7)
EPSS history
Timeline
  • 12 NOV 21:56Z
    ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
    cvelistv5