CVE-2011-1739

Name: CVE-2011-1739
Creator: NVD / NIST
Published: 2011-05-03T20:55:12.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.28%

Last modified Jun 16, 2026

CVE-2011-1739 is a vulnerability of currently unknown severity. The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.

Metrics

EPSS Probability

1.28%

66.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	7.4
Freebsd	Freebsd	8.0
Freebsd	Freebsd	8.1
Freebsd	Freebsd	8.2

References

Timeline

Published: May 3, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-1739?

How severe is CVE-2011-1739?

Severity scoring for CVE-2011-1739 is pending analysis. The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.

How do I fix CVE-2011-1739?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-1739?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST