CVE-2014-4156

Name: CVE-2014-4156
Creator: NVD / NIST
Published: 2020-01-27T15:15:11.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.20%

Last modified Jun 17, 2026

CVE-2014-4156 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Proxmox VE prior to 3.2: 'AccessControl.pm' User Enumeration Vulnerability. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

Description

Proxmox VE prior to 3.2: 'AccessControl.pm' User Enumeration Vulnerability

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

1.20%

64.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-203

Affected Software

Vendor	Product	Versions
Proxmox	Virtual Environment	< 3.2

References

http://www.openwall.com/lists/oss-security/2014/06/17/16Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/68028Third Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2014/06/17/16Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/68028Third Party Advisory, VDB Entry

Timeline

Published: Jan 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-4156?

Proxmox VE prior to 3.2: 'AccessControl.pm' User Enumeration Vulnerability

How severe is CVE-2014-4156?

CVE-2014-4156 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2014-4156?

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-2014-4156?

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

Scan your code now

Source: NVD / NIST