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Vulnerability record · CVE-2012-4606 · published 23 January 2020

CVE-2012-4606: Citrix xenserver improper privilege management vulnerability

Citrix · Xenserver

Citrix XenServer 4.1, 6.0, 5.6 SP2, 5.6 Feature Pack 1, 5.6 Common Criteria, 5.6, 5.5, 5.0, and 5.0 Update 3 contains a Local Privilege Escalation Vulnerability which could allow local users with access to a guest operating system to gain elevated privileges.

7.8 CVSS 3.1 High EPSS 0.36% · top 73.2% CWE-269 · Improper privilege management
7.8CVSS 3.1 base score, v2 4.6
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

Citrix XenServer 4.1, 6.0, 5.6 SP2, 5.6 Feature Pack 1, 5.6 Common Criteria, 5.6, 5.5, 5.0, and 5.0 Update 3 contains a Local Privilege Escalation Vulnerability which could allow local users with access to a guest operating system to gain elevated privileges.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/55432 Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/55432 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-4947Citrix xenserver memory buffer overflow vulnerabilityBuffer overflow in the HVM graphics console support in Citrix XenServer 6.2 Service Pack 1 and earlier has unspecified impact and attack vectors.EPSS 5.4%9.9CVE-2016-9603Qemu heap-based buffer overflow vulnerabilityA heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a V…EPSS 4.4%9.9CVE-2017-2620Qemu out-of-bounds write vulnerabilityQuick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could…EPSS 3.6%9.8CVE-2018-14007Citrix XenServer directory traversal flawCitrix XenServer 7.1 and newer contains a directory traversal vulnerability (CWE-22) that lets a remote, unauthenticated attacker reach files outside…EPSS 56%analysed9.8CVE-2015-7705Ntp improper input validation vulnerabilityThe rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified impact via a large number of …EPSS 12%9.8CVE-2016-5302Citrix xenserver improper access control vulnerabilityCitrix XenServer 7.0 before Hotfix XS70E003, when a deployment has been upgraded from an earlier release, might allow remote attackers on the managem…EPSS 2.6%9.1CVE-2017-2615Qemu out-of-bounds write vulnerabilityQuick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copyi…EPSS 3.6%8.8CVE-2017-12134Xen vulnerabilityThe xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and con…EPSS 0.50%

Source: NIST National Vulnerability Database (record CVE-2012-4606), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.