CVE-2006-1656

vserver in util-vserver 0.30.209 executes a command as root when the suexec userid parameter is invalid and non-numeric, which might cause local users to inadvertently execute dangerous commands as root.

Published: 2006-04-06 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-1656 is rated Low Risk (33/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). 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-2006-1656

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 2025-03-30 0.05% 0.05% -0.00%
2 2025-03-29 0.04% 0.05% +0.01%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-1656

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2006-1656

OS Trackers for CVE-2006-1656

vendor priority summary link
ubuntu medium CVE-2006-1656 medium priority: Ubuntu including 1 source packages (util-vserver), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): not-affected 3, needs-triage 1. https://ubuntu.com/security/CVE-2006-1656

Affected software / configurations for CVE-2006-1656

Vendor Product Version Raw CPE
vserver util-vserver <= 0.30.210 cpe:2.3:a:vserver:util-vserver:*:*:*:*:*:*:*:*
vserver util-vserver 0.30.209 cpe:2.3:a:vserver:util-vserver:0.30.209:*:*:*:*:*:*:*

References for CVE-2006-1656

cvelogic Threat Intelligence