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.

Published: 2006-11-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-5990 is rated Low Risk (35.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.86%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-5990

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.36% 0.86% +0.50%
2 2025-03-17 0.17% 0.36% +0.19%
3 2024-12-17 — 0.17% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-5990

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:H/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 4.9 [email protected]

Weakness enumeration for CVE-2006-5990

OS Trackers for CVE-2006-5990

vendor priority summary link
alpine — CVE-2006-5990: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-5990

Affected software / configurations for CVE-2006-5990

Vendor Product Version Raw CPE
vmware virtualcenter 1.4.1 cpe:2.3:a:vmware:virtualcenter:1.4.1:*:*:*:*:*:*:*
vmware virtualcenter 2.0.1 cpe:2.3:a:vmware:virtualcenter:2.0.1:*:*:*:*:*:*:*

References for CVE-2006-5990

cvelogic Threat Intelligence