CVE-2015-6927

Name: CVE-2015-6927
Creator: NVD / NIST
Published: 2015-09-28T20:59:09.017+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.50%

Last modified Jun 17, 2026

CVE-2015-6927 is a vulnerability of currently unknown severity. vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.

Metrics

EPSS Probability

0.50%

39.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Openvz	Vzctl	<= 4.9.3

References

Timeline

Published: Sep 28, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6927?

How severe is CVE-2015-6927?

Severity scoring for CVE-2015-6927 is pending analysis. The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6927?

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-2015-6927?

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

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Source: NVD / NIST