CVE-2023-40779
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 · uneditedAn issue in IceWarp Mail Server Deep Castle 2 v.13.0.1.2 allows a remote attacker to execute arbitrary code via a crafted request to the URL.
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 · low confidenceIceWarp Mail Server Deep Castle 2 version 13.0.1.2 contains a remote code execution vulnerability where a crafted HTTP request to a specific URL allows attackers to execute arbitrary code on the target system. The specific vulnerable component and attack vector are not detailed in available sources.
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= 13.0.1.2CVSS 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
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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.
-
Identify IceWarp Mail Server installationLocate IceWarp installation directories (commonly C:\Program Files\IceWarp or /var/opt/icewarp on Linux). Check for icewarp.exe, icewarpd, or related processes running on the system.Affected if IceWarp Mail Server software is installed and running on the system
-
Determine installed versionCheck the installed version of IceWarp Mail Server. On Windows, right-click icewarp.exe and view Properties > Details, or check the control panel. On Linux, run: /opt/icewarp/icewarpd --version or check /var/log/icewarp/ for version files.Affected if The installed version is exactly 13.0.1.2 (Deep Castle G2)
-
Verify HTTP/HTTPS service is enabledCheck if IceWarp's web server or HTTP service is running. Look for processes listening on ports 80, 443, or IceWarp's webmail port (typically 32000 series). Use 'netstat -an | findstr LISTENING' on Windows or 'netstat -tlnp | grep icewarp' on Linux.Affected if HTTP or HTTPS services are active and listening for connections
-
Confirm network exposureDetermine if the IceWarp HTTP interface is accessible from network locations. Check firewall rules and binding addresses in IceWarp configuration (typically in icewarp.xml or via the admin console).Affected if The HTTP/HTTPS interface is reachable from network hosts rather than localhost only
Your environment is affected if IceWarp Mail Server Deep Castle G2 version 13.0.1.2 is installed and its HTTP service is exposed, as the RCE vulnerability can be triggered via crafted HTTP requests to the web interface.
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 any available vendor patches for IceWarp Mail Server 13.0.1.2. If no patch exists, restrict network access to the mail server's HTTP/HTTPS interfaces and consider isolating the service until a fix is available.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-40779 — 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-2023-40779 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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