Out-of-Bounds Write Vulnerability in libnfs by Sahlberg
CVE-2026-108985

7.1HIGH

Key Information:

Vendor

Sahlberg

Status
Libnfs
Vendor
CVE Published:
12 October 2026

What is CVE-2026-108985?

An out-of-bounds write vulnerability exists in libnfs prior to version 6.0.2. This issue is triggered during the ZDR decoding process. The functions involved, including libnfs_zdr_bytes(), libnfs_zdr_string(), and libnfs_zdr_array(), do not properly enforce the caller-supplied maxsize value, allowing for potential overwriting of memory beyond allocated bounds. This can lead to unexpected behavior and potential software exploitation.

Affected Version(s)

libnfs 0 < 7613236464317bee2d9636f087f995148de4db27

libnfs 0 <= 6.0.2

References

https://github.com/sahlberg/libnfs/commit/7613236464317be...
patch

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.