CVE-2008-6577

Nortel MG1000S, Signaling Server, and Call Server on the Communications Server 1000 (CS1K) 4.50.x contain multiple unspecified hard-coded accounts and passwords, which allows remote attackers to gain privileges.

Published: 2009-04-01 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-6577 is rated High Risk (69.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.28%). High exploitation likelihood—assess exposure and prioritize 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-2008-6577

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 2025-08-21 2.56% 2.28% -0.28%
2 2025-03-30 3.47% 2.56% -0.91%
3 2025-03-29 — 3.47% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-6577

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2008-6577

Affected software / configurations for CVE-2008-6577

Vendor Product Version Raw CPE
nortel cs1000 4.50 cpe:2.3:h:nortel:cs1000:4.50:*:*:*:*:*:*:*

References for CVE-2008-6577

cvelogic Threat Intelligence