SecuriTricks - CVE-2026-53689

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.

Product(s) Impacted

Vendor	Product	Versions
Libnfs	Libnfs	<6.0.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-1284

Improper Validation of Specified Quantity in Input

The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	libnfs	libnfs	<6.0.2	/	/	/	/	/	/	/

References

https://github.com/sahlberg/libnfs/commit/55c18ea33a83d667f79f0ef209c96895795c729f

CVSS Score

7.1 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: LOW

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

View Vector String

Timeline

Published: June 10, 2026, 3:16 p.m.
Last Modified: June 10, 2026, 3:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-53689