CVE-2007-3177

Ingate Firewall and SIParator before 4.5.2 allow remote attackers to bypass SIP authentication via a certain maddr parameter.

Published: 2007-06-11 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-3177 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.40%). 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-2007-3177

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 0.61% 1.40% +0.79%
2 2026-01-28 0.46% 0.61% +0.15%
3 2025-08-26 — 0.46% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-3177

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:P/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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2007-3177

NVD evaluator notes for CVE-2007-3177

Solution: The vendor has addressed this issue through the release of a product upgrade: http://www.ingate.com/upgrades.php

Affected software / configurations for CVE-2007-3177

Vendor Product Version Raw CPE
ingate ingate_firewall <= 4.5.1 cpe:2.3:h:ingate:ingate_firewall:*:*:*:*:*:*:*:*
ingate ingate_siparator <= 4.5.1 cpe:2.3:h:ingate:ingate_siparator:*:*:*:*:*:*:*:*

References for CVE-2007-3177

cvelogic Threat Intelligence