CVE-2006-6981

3proxy 0.5 to 0.5.2, when NT-encoded passwords are being used, allows remote attackers to cause a denial of service (blocked account) via unspecified vectors related to NTLM authentication, which causes a password hash to be overwritten.

Published: 2007-02-08 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-6981 is rated Moderate Risk (47.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.19%). 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-2006-6981

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 2025-09-27 0.98% 1.19% +0.21%
2 2025-08-05 0.91% 0.98% +0.07%
3 2025-04-25 — 0.91% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-6981

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P 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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2006-6981

Affected software / configurations for CVE-2006-6981

Vendor Product Version Raw CPE
3proxy 3proxy 0.5 cpe:2.3:a:3proxy:3proxy:0.5:*:*:*:*:*:*:*
3proxy 3proxy 0.5.1 cpe:2.3:a:3proxy:3proxy:0.5.1:*:*:*:*:*:*:*
3proxy 3proxy 0.5.2 cpe:2.3:a:3proxy:3proxy:0.5.2:*:*:*:*:*:*:*

References for CVE-2006-6981

cvelogic Threat Intelligence