CVE-2025-42599
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 · uneditedActive! mail 6 BuildInfo: 6.60.05008561 and earlier contains a stack-based buffer overflow vulnerability. Receiving a specially crafted request created and sent by a remote unauthenticated attacker may lead to arbitrary code execution and/or a denial-of-service (DoS) condition.
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 confidenceA stack-based buffer overflow in Active! mail 6 (versions 6.60.05008561 and earlier) allows remote unauthenticated attackers to execute arbitrary code or cause denial of service via specially crafted network requests.
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< 6.60.05008562CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Identify installed Qualitia Active! Mail versionLocate the installed version of Active! Mail using the product's built-in version info command, about dialog, or version file in the installation directoryAffected if The installed version is 6.60.05008561 or any version lower than 6.60.05008562
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Compare version against affected rangeReview the version number and confirm it falls within the vulnerable range: versions prior to 6.60.05008562Affected if The version is 6.60.05008561 or earlier
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Confirm the mail service is running and accessibleDetermine if the Active! Mail service is currently running and listening on its configured network portsAffected if The service is running and accepts external connections
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Assess network exposureCheck whether the Active! Mail server is exposed to untrusted networks or the internet by reviewing firewall rules and network configurationAffected if The mail server is directly accessible from untrusted networks without firewall protection
A user is affected if their installed Qualitia Active! Mail version is 6.60.05008561 or earlier AND the service is network-accessible.
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.
dbcve · scoped6.60.05008562
Update Active! mail 6 to a version newer than 6.60.05008561; if immediate patching is not feasible, minimize network exposure and implement intrusion detection monitoring.
Upgrade to Active! Mail 6 version 6.60.05008562 or later
- 1. Obtain the latest version of Active! Mail 6 from the vendor (Qualitia)
- 2. Back up the current Active! Mail configuration and data
- 3. Stop the Active! Mail service
- 4. Install version 6.60.05008562 or later
- 5. Verify the installation by checking BuildInfo: 6.60.05008562
- 6. Restart the Active! Mail service
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation2.0 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 $3,552.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-42599 — 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-2025-42599 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