{"id":"CVE-2026-53689","title":"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","summary":"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.","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L","cwe":["CWE-1284"],"published":"2026-06-10","updated":"2026-07-19","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53689","references":[{"url":"https://github.com/sahlberg/libnfs/commit/55c18ea33a83d667f79f0ef209c96895795c729f","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2026/07/msg00031.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00212,"epssPercentile":0.11786,"ingestedAt":"2026-07-19T09:30:44.421Z","slug":"CVE-2026-53689","body":"## Overview\n\nlibnfs 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}