Is CVE-2007-4135 in the CISA KEV catalog?

No. CVE-2007-4135 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2007-4135?

CVE-2007-4135 has a CVSS v2 base score of 6.2 (MEDIUM).

What is the EPSS score for CVE-2007-4135?

CVE-2007-4135 has an EPSS score of 0.34% (26th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2007-4135?

Upgrade libnfsidmap on debian 11 to 0.18-0 or later.

CVE & CISA-KEV Catalog

CVE-2007-4135

MEDIUM

6.2

CVSS v2

NVD

Description

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.

How to fix

Remediation Available

libnfsidmapDebian

Fixed in:0.18-0CVE-2007-4135

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.34%probability of exploitation in 30 days

26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

Patch1

secunia.com

Vendor Advisory2

Other references6

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.