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ImailApplication · Ipswitch

CVE-2007-1637

HIGH · 9.3 CVSS v2.0 Published 2007-03-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Multiple buffer overflow vulnerabilities in the IMAILAPILib ActiveX control (IMailAPI.dll) in Ipswitch IMail Server versions before 2006.2. The vulnerabilities affect WebConnect and Connect methods in the IMailServer control, Sync3 and Init3 methods in the IMailLDAPService control, and SetReplyTo in the IMailUserCollection control, allowing remote attackers to execute arbitrary code via crafted arguments.

MitigationUpgrade to IMail Server version 2006.2 or later to obtain patched IMAILAPILib ActiveX control; if upgrade is not immediately feasible, disable or restrict access to the vulnerable IMailAPI.dll ActiveX control.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ImailApplication
Affected:= 2006
Imail PlusApplication
Affected:= 2006
Imail PremiumApplication
Affected:= 2006
Ipswitch Collaboration SuiteApplication
Affected:= 2006_standard

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
M
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Ipswitch IMail Server installation
    Check for the presence of IMail Server by looking in the Windows registry under HKLM\SOFTWARE\Ipswitch\IMail or checking the installation directory (typically C:\Program Files\Ipswitch\IMail).
    Affected if The product is installed and the version is 2006 or earlier (versions before 2006.2).
  2. Identify IMailAPI.dll version
    Locate IMailAPI.dll in the IMail installation directory (commonly in the \Web\ or \bin\ folder) and view the file properties to obtain the version number.
    Affected if The DLL version is earlier than the version shipped with IMail Server 2006.2 (the patched release).
  3. Check if ActiveX control is registered
    Query the Windows registry for the CLSID of the IMailServer, IMailLDAPService, or IMailUserCollection controls under HKCR\CLSID or use regsvr32 to attempt registration and note the current registration status.
    Affected if The vulnerable ActiveX control (IMailAPI.dll) is present on the system and accessible via web interfaces or applications that host the control.

A user is affected if Ipswitch IMail Server version 2006 or earlier is installed and the IMailAPI.dll ActiveX control is present and accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to IMail Server version 2006.2 or later to obtain patched IMAILAPILib ActiveX control; if upgrade is not immediately feasible, disable or restrict access to the vulnerable IMailAPI.dll ActiveX control.

Recommended fix High confidence

Ipswitch IMail Server 2006.2 or later

  1. 1. Identify current Ipswitch IMail Server version by checking the installed IMailServer or IMailAPI.dll version
  2. 2. If version is before 2006.2, download Ipswitch IMail Server 2006.2 or later from the official Ipswitch download site
  3. 3. Before upgrading, backup all mail data, configurations, and registry settings
  4. 4. Stop all IMail services (IMail Server, IMail LDAP Service, etc.)
  5. 5. Install the upgraded version (2006.2 or later)
  6. 6. Verify the IMAILAPILib ActiveX control (IMailAPI.dll) is updated to the patched version
  7. 7. Restart IMail services and test functionality
  8. 8. If unable to upgrade immediately, disable the vulnerable ActiveX controls in Internet Explorer by adding the affected CLSIDs to the Windows ActiveX kill bit or using Group Policy to disable ActiveX controls for the IMAILAPILib component
Caveat Review Ipswitch release notes for 2006.2 for any configuration or compatibility changes; major version upgrades may require migration planning

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Imail Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing3.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,750
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2007-1637 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data