CVE-2007-4135: NFSV4 Nfsidmap

Medium severity, CVSS 6.2. EPSS: 0.3% chance of exploitation in the next 30 days.

The NFSv4 ID mapper (nfsidmap) before 0.17 does not properly handle return values from the getpwnam_r function when performing a username lookup, which can cause it to report a file as being owned by "root" instead of "nobody" if the file exists on the server but not on the client.

Affected products

• NFSV4 Nfsidmap: up to and including 0.16.22

Published 2007-09-05. Last modified 2026-06-16.