CVE-2007-3926
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 · uneditedIpswitch IMail Server 2006 before 2006.21 allows remote attackers to cause a denial of service (daemon crash) via unspecified vectors involving an "overwritten destructor."
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 confidenceIpswitch IMail Server 2006 before version 2006.21 contains a denial of service vulnerability where remote attackers can cause the mail daemon to crash via unspecified vectors involving an 'overwritten destructor.' This indicates a memory corruption issue where the object's destructor is overwritten, leading to a crash when the object is destroyed.
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= 2006.2CVSS 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
- Low
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Complete
AV:N/AC:L/Au:N/C:N/I:N/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 checksWork through these to decide whether this CVE applies to you.
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Confirm Ipswitch IMail Server is installedCheck for IMail Server installation by looking for the IMail service or checking Program Files for Ipswitch directoryAffected if IMail Server software is present on the system
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Determine the installed IMail Server versionUse the IMail Administrator utility or check the version information of the imailsrv.exe or related IMail binaries in the installation directoryAffected if The installed version is exactly 2006.2 (the affected version)
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Verify the specific version numberCompare your installed version against the affected range: version 2006.2 (also referred to as 2006 before 2006.21)Affected if Version is 2006.2 or any version prior to 2006.21 but after 2006.0 (2006 product line)
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Confirm the IMail service is running and exposedCheck if the IMail SMTP service (the mail daemon) is running and listening on port 25Affected if The IMail mail service is active and network-accessible
You are affected if Ipswitch IMail Server 2006 version 2006.2 (or any 2006.x version prior to 2006.21) is installed with the mail daemon service running.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataUpgrade Ipswitch IMail Server 2006 to version 2006.21 or later to patch the vulnerability. If upgrading is not feasible, consider network segmentation to limit exposure to the IMail Server.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2007-3926 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2007-3926 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data