CVE-2006-6683

Pedro Lineu Orso chetcpasswd 2.4.1 and earlier verifies and updates user accounts via custom code that processes /etc/shadow and does not follow the PAM configuration, which might allow remote attackers to bypass intended restrictions implemented through PAM.

Published: 2006-12-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-6683 is rated Moderate Risk (55.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.32%). EPSS rose +1.14% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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-2006-6683

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 0.18% 1.32% +1.14%
2 2025-08-09 0.15% 0.18% +0.03%
3 2025-03-30 — 0.15% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-6683

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
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:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2006-6683

OS Trackers for CVE-2006-6683

vendor priority summary link
alpine — CVE-2006-6683: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-6683

Affected software / configurations for CVE-2006-6683

Vendor Product Version Raw CPE
pedro_lineu_orso chetcpasswd <= 2.4.1 cpe:2.3:a:pedro_lineu_orso:chetcpasswd:*:*:*:*:*:*:*:*
pedro_lineu_orso chetcpasswd 1.12 cpe:2.3:a:pedro_lineu_orso:chetcpasswd:1.12:*:*:*:*:*:*:*
pedro_lineu_orso chetcpasswd 2.1 cpe:2.3:a:pedro_lineu_orso:chetcpasswd:2.1:*:*:*:*:*:*:*
pedro_lineu_orso chetcpasswd 2.2.1 cpe:2.3:a:pedro_lineu_orso:chetcpasswd:2.2.1:*:*:*:*:*:*:*
pedro_lineu_orso chetcpasswd 2.3.1 cpe:2.3:a:pedro_lineu_orso:chetcpasswd:2.3.1:*:*:*:*:*:*:*
pedro_lineu_orso chetcpasswd 2.3.3 cpe:2.3:a:pedro_lineu_orso:chetcpasswd:2.3.3:*:*:*:*:*:*:*

References for CVE-2006-6683

cvelogic Threat Intelligence