How severe is CVE-2012-4606?

CVE-2012-4606 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2012-4606 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4606?

CVE-2012-4606 primarily affects Citrix Xenserver. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4606?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-4606 published?

CVE-2012-4606 was published on 2020-01-23 and last updated on 2026-06-16.

CVE-2012-4606

CVE-2012-4606 is a high-severity vulnerability in Citrix Xenserver with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Citrix Xenserver
Published: 2020-01-23
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2012-4606?: 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.
How severe is CVE-2012-4606?: CVE-2012-4606 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2012-4606 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4606?: CVE-2012-4606 primarily affects Citrix Xenserver. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4606?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-4606 published?: CVE-2012-4606 was published on 2020-01-23 and last updated on 2026-06-16.

References

http://www.securityfocus.com/bid/55432

Affected products (9)

cpe:2.3:a:citrix:xenserver:4.1:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:5.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:5.0:update_3:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:5.5:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:5.6:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:5.6:common_criteria:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:5.6:fp1:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:5.6:sp2:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:6.0:*:*:*:*:*:*:*

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