CVE-2021-44529
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 · uneditedA code injection vulnerability in the Ivanti EPM Cloud Services Appliance (CSA) allows an unauthenticated user to execute arbitrary code with limited permissions (nobody).
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 confidenceCode injection vulnerability in the Ivanti EPM Cloud Services Appliance (CSA) allows an unauthenticated attacker to execute arbitrary code on the target system with 'nobody' user privileges.
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<= 4.5= 4.6CVSS 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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Confirm Ivanti CSA installationIdentify whether the Ivanti Endpoint Manager Cloud Services Appliance component is present in the environment. Check for installed CSA services, processes, or the CSA web interface.Affected if Ivanti CSA is installed and running in the environment
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Check CSA versionLocate and retrieve the installed version of the Cloud Services Appliance. This is typically available in the CSA administration interface, system information page, or version file. Compare the version number against the affected ranges: version 4.5 and earlier, or version 4.6.Affected if The installed CSA version is 4.5 or lower, or exactly version 4.6
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Verify CSA management interface exposureDetermine if the CSA web management interface is network-accessible from untrusted networks. Check firewall rules, network ACLs, or reverse proxy configurations that expose the CSA ports (commonly port 443 or 8080) to the internet or untrusted networks.Affected if The CSA management interface is accessible from untrusted network locations without additional authentication barriers
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Inspect for code injection artifactsExamine the CSA system for unexpected files, scripts, or processes running under the 'nobody' user account. Review any recently created or modified executable files, cron jobs, or shell scripts in the CSA web directory.Affected if Unexpected scripts, processes, or files exist that were not authored by administrators, or commands are executing under the 'nobody' user context unexpectedly
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Review CSA access and error logsAnalyze CSA server logs for signs of exploitation attempts, including malformed input patterns, unusual API calls, or authentication failures from unexpected source IP addresses.Affected if Log entries show injection attempts containing special characters, unauthorized access attempts, or commands not initiated by legitimate administrators
If Ivanti CSA versions 4.5 or lower, or version 4.6 is installed and the management interface is network-accessible, the environment is potentially affected by CVE-2021-44529 and should be investigated further.
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 vendor-provided security patches for CVE-2021-44529 to the Ivanti EPM CSA immediately. Until patched, restrict network access to the CSA to trusted IPs only and monitor for indicators of compromise.
- 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-2021-44529 — 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-2021-44529 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