Vulnerability record · CVE-2026-53689 · published 10 June 2026

CVE-2026-53689: libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a c…

libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a connection to a crafted NFS server. This occurs in libnfs_zdr_string in lib/libnfs-zdr.c.

7.1 CVSS 3.1 High EPSS 0.35% · top 73.6% CWE-1284 · CWE-1284 Deferred

7.1CVSS 3.1 base score

0.35%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

2References

19 Jul 2026Last modified by NVD

Description

libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a connection to a crafted NFS server. This occurs in libnfs_zdr_string in lib/libnfs-zdr.c.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

References

Link	Tags
https://github.com/sahlberg/libnfs/commit/55c18ea33a83d667f79f0ef209c96895795c729f
https://lists.debian.org/debian-lts-announce/2026/07/msg00031.html

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Source: NIST National Vulnerability Database (record CVE-2026-53689), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.