CVE-2007-1637

Multiple buffer overflows in the IMAILAPILib ActiveX control (IMailAPI.dll) in Ipswitch IMail Server before 2006.2 allow remote attackers to execute arbitrary code via the (1) WebConnect and (2) Connect members in the (a) IMailServer control; (3) Sync3 and (4) Init3 members in the (b) IMailLDAPService control; and the (5) SetReplyTo member in the (c) IMailUserCollection control.

Published: 2007-03-23 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-1637 is rated High Risk (74/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.62%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.65% over the last day, indicating growing attacker interest. 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-2007-1637

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 0.97% 5.62% +4.65%
2 2026-01-01 0.53% 0.97% +0.44%
3 2025-11-09 — 0.53% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-1637

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2007-1637

NVD evaluator notes for CVE-2007-1637

Solution: Upgrade to version 2006.2.

Affected software / configurations for CVE-2007-1637

Vendor Product Version Raw CPE
ipswitch imail 2006 cpe:2.3:a:ipswitch:imail:2006:*:*:*:*:*:*:*
ipswitch imail_plus 2006 cpe:2.3:a:ipswitch:imail_plus:2006:*:*:*:*:*:*:*
ipswitch imail_premium 2006 cpe:2.3:a:ipswitch:imail_premium:2006:*:*:*:*:*:*:*
ipswitch ipswitch_collaboration_suite 2006_standard cpe:2.3:a:ipswitch:ipswitch_collaboration_suite:2006_standard:*:*:*:*:*:*:*

References for CVE-2007-1637

cvelogic Threat Intelligence