CVE Catalog

CVE-2026-53689

HighCVSS 7.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

11th percentile - higher than 11% of all known CVEs

Summary

A vulnerability in libnfs through version 6.0.2 before commit 55c18ea fails to validate a string size, leading to an integer overflow when connecting to a crafted NFS server. The issue resides in libnfs_zdr_string in lib/libnfs-zdr.c.

Risk Assessment

An attacker can exploit this vulnerability to achieve remote code execution or cause a denial of service (DoS) by sending specially crafted NFS server responses to a client using libnfs.

Recommendation

Immediately update libnfs to a version containing the fix (commit 55c18ea or later). If an update is not possible, restrict trusted NFS connections to verified servers only.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS