CVE-2007-1637

CVE-2007-1637 is a critical-severity vulnerability in Ipswitch Imail with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2007-1637?
CVE-2007-1637 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-1637 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1637?
CVE-2007-1637 primarily affects Ipswitch Imail. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-1637?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-1637 published?
CVE-2007-1637 was published on 2007-03-23 and last updated on 2026-06-16.

References

Affected products (4)

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