CVE-2023-53457

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2025-10-01 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the filesystem is read-only before calling txBegin, and returning with appropiate error code.

Weakness Classification (1)

Affected Software (15)

VendorProductVersion
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a7225e9e09519deb7e0c42eb6070029cc456e84d
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1b4c144767736221cad92c132f72b3c6ed06a0ea
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3e94d0d378d2754b26fc54b429582553f7b53e15
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fd2db13fb72ff18c633a48229589d42ceb89d1f8
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 47cfdc338d674d38f4b2f22b7612cc6a2763ba27
Linux Linux 2.6.12
linux linux_kernel 2.6.12.1 – 4.14.324
linux linux_kernel 2.6.12
linux linux_kernel 2.6.12
linux linux_kernel 2.6.12
linux linux_kernel 2.6.12
linux linux_kernel 2.6.12

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.16%
Raw Score 0.001600
Percentile 5.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00160
2026-11-13
0.00160
2026-11-12
0.00160
2026-11-10
0.00160
2026-11-09
0.00160
2026-11-08
0.00160
2026-11-07
0.00160
2026-11-06
0.00160
2026-11-05
0.00160

Intelligence Sources

mitre ref →
nvd ref →