CVE-2023-53381

low-risk
Published 2025-09-18

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.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (5)

Patch https://git.kernel.org/stable/c/2da50149981d05955e51c28e982e9ac29bd73417
Patch https://git.kernel.org/stable/c/34e8f9ec4c9ac235f917747b23a200a5e0ec857b
Patch https://git.kernel.org/stable/c/6c3c05402547aaca3edb23327b50f01a881831b9
Patch https://git.kernel.org/stable/c/80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0
Patch https://git.kernel.org/stable/c/9f0df37520a27ad99eaacf38418b3d2bb5023105
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal