How severe is CVE-2006-5990?

CVE-2006-5990 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2006-5990 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-5990?

CVE-2006-5990 primarily affects Vmware Virtualcenter. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-5990?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-5990 published?

CVE-2006-5990 was published on 2006-11-21 and last updated on 2026-06-16.

CVE-2006-5990

CVE-2006-5990 is a medium-severity vulnerability in Vmware Virtualcenter with a CVSS 2.0 base score of 4.0. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Vmware Virtualcenter
Published: 2006-11-21
Last modified: 2026-06-16

Description

VMWare VirtualCenter client 2.x before 2.0.1 Patch 1 (Build 33643) and 1.4.x before 1.4.1 Patch 1 (Build 33425), when server certificate verification is enabled, does not verify the server's X.509 certificate when creating an SSL session, which allows remote malicious servers to spoof valid servers via a man-in-the-middle attack.

Frequently asked questions

What is CVE-2006-5990?: VMWare VirtualCenter client 2.x before 2.0.1 Patch 1 (Build 33643) and 1.4.x before 1.4.1 Patch 1 (Build 33425), when server certificate verification is enabled, does not verify the server's X.509 certificate when creating an SSL session, which allows remote malicious servers to spoof valid servers via a man-in-the-middle attack.
How severe is CVE-2006-5990?: CVE-2006-5990 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2006-5990 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5990?: CVE-2006-5990 primarily affects Vmware Virtualcenter. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-5990?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-5990 published?: CVE-2006-5990 was published on 2006-11-21 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:vmware:virtualcenter:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:virtualcenter:2.0.1:*:*:*:*:*:*:*

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