CVE-2023-53381

MEDIUM EPSS 3.3%
Published Sep 18, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 18, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix leaked reference count of nfsd4_ssc_umount_item The reference count of nfsd4_ssc_umount_item is not decremented on error conditions. This prevents the laundromat from unmounting the vfsmount of the source file. This patch decrements the reference count of nfsd4_ssc_umount_item on error.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.14  –  <5.15.154
linuxlinux_kernel*≥5.16  –  <6.1.16
linuxlinux_kernel*≥6.2  –  <6.2.3

References 5

  • git.kernel.org https://git.kernel.org/stable/c/2da50149981d05955e51c28e982e9ac29bd73417
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/34e8f9ec4c9ac235f917747b23a200a5e0ec857b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c3c05402547aaca3edb23327b50f01a881831b9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f0df37520a27ad99eaacf38418b3d2bb5023105
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2da50149981d05955e51c28e982e9ac29bd73417
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/34e8f9ec4c9ac235f917747b23a200a5e0ec857b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c3c05402547aaca3edb23327b50f01a881831b9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f0df37520a27ad99eaacf38418b3d2bb5023105
    Patch