CVE-2020-14065
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 · uneditedIceWarp Email Server 12.3.0.1 allows remote attackers to upload files and consume disk space.
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 · moderate confidenceIceWarp Email Server 12.3.0.1 contains an arbitrary file upload vulnerability that allows remote, unauthenticated attackers to upload files to the server, leading to denial of service through excessive disk space consumption.
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= 12.3.0.1CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 IceWarp versionLocate the IceWarp installation directory and check the version. Typically found in the main executable, installation logs, or web interface footer. On Windows, check the program files folder or registry. On Linux, check /opt/icewarp or similar installation paths.Affected if The installed version is exactly 12.3.0.1
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Verify webmail service is accessibleAttempt to access the IceWarp webmail interface via HTTP/HTTPS on common ports (80, 443, 32000, etc.). The vulnerability is exploitable through the web interface file upload functionality.Affected if The webmail interface is exposed and reachable from network locations
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Inspect upload directories for unexpected filesCheck the webmail upload directory (commonly /webmail/attachments or similar paths within the IceWarp installation) for files with unusual extensions, large file sizes, or unexpected timestamps.Affected if Unexpected files exist in upload directories, particularly executable or script files
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Review server logs for unauthenticated upload attemptsExamine IceWarp server access and error logs for patterns of repeated POST requests to upload endpoints, especially from unauthenticated or unknown IP addresses.Affected if Logs show many upload requests from unauthenticated sources or unusual upload patterns
The environment is affected if IceWarp Mail Server version 12.3.0.1 is installed AND the webmail or file upload interface 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.
From vendor dataApply the vendor patch or upgrade to a patched version of IceWarp Email Server. If immediate patching is not possible, restrict external access to the affected service and monitor for unusual inbound file transfer activity.
- Consultation3.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,472.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-14065 — 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-2020-14065 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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- 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