CVE-2026-53689

Public on 2026-06-10

Modified on 2026-06-12

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.

Severity

Important

See what this means

CVSS v3 Base Score

7.1

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	libnfs	Pending Fix
Amazon Linux 2023	libnfs	Pending Fix
Amazon Linux 2 - Core	libnfsidmap	Not Affected

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	7.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-53689 Mitre: CVE-2026-53689