Xenclient XtApplication · Citrix
CVE-2013-2601
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 · uneditedThe NDVM in Citrix XenClient XT before 2.1.3 and 3.x before 3.1.4 allows remote attackers to execute arbitrary commands by using the UIVM to create a network connection.
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 confidenceThe NDVM (Network Driver VM) component in Citrix XenClient XT has a command injection vulnerability. Attackers can execute arbitrary commands remotely by leveraging the UIVM (User Interface VM) to create a malicious network connection, potentially gaining full control of the affected system.
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
Xenclient XtApplication
<= 2.1.2= 3.0.0= 3.1.3CVSS 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
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 Citrix XenClient XT installationIdentify if the target system has Citrix XenClient XT installed. This is a hypervisor product typically deployed on dedicated hardware. Check system inventory or product documentation for XenClient XT presence.Affected if The system is running Citrix XenClient XT and the installed version falls within <= 2.1.2, = 3.0.0, or = 3.1.3
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Determine installed XenClient XT versionLocate the version of XenClient XT installed on the system. This information is typically available in the XenClient XT management console, system information panel, or via the xtutil command-line tool if accessible.Affected if The installed version is 2.1.2 or earlier, exactly 3.0.0, or exactly 3.1.3
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Verify NDVM component is presentConfirm that the NDVM (Network Driver VM) component is configured and running on the XenClient XT system. This component handles network driver virtualization for the platform.Affected if NDVM is present and active on a version-affected XenClient XT installation
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Check UIVM network configurationExamine the network configuration of the UIVM (User Interface VM) to determine if it has the ability to create network connections. Review the network bridging or connection settings between UIVM and NDVM.Affected if UIVM is configured with active network connectivity to NDVM on an affected version
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Review network connection logsInspect system and NDVM logs for any unusual or suspicious network connections originating from the UIVM, or signs of command injection attempts.Affected if Suspicious network connections from UIVM to NDVM are found, or anomalous network activity is logged
The environment is affected if Citrix XenClient XT is installed with a version of 2.1.2 or lower, exactly 3.0.0, or exactly 3.1.3, and the NDVM component with UIVM network connectivity is active.
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 Citrix XenClient XT to version 2.1.3 or later (for 2.x branches) or 3.1.4 or later (for 3.x branches). If immediate patching is not possible, restrict network access to the UIVM and disable unnecessary network connections from untrusted sources.
Fix this in Xenclient Xt
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing8.0 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 $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-2601 — 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-2013-2601 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
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