CVE-2021-37926
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 · uneditedZoho ManageEngine ADManager Plus version 7110 and prior allows unrestricted file upload which leads to remote code execution.
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 confidenceZoho ManageEngine ADManager Plus versions 7110 and prior contain an unrestricted file upload vulnerability. Attackers can upload malicious files (such as web shells) to the server without proper validation, enabling them to achieve remote code execution on the underlying 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< 7.1= 7.1CVSS 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
- 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 ADManager Plus installationLocate the ADManager Plus installation directory (common paths: C:\ManageEngine\ADManager Plus on Windows, /opt/ManageEngine/ADManager Plus on Linux) or check running services for 'ADManager Plus'Affected if ADManager Plus is present on the system
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Identify installed versionCheck the version/build number in the product's About page via the web interface (typically at https://hostname:8080/about.jsp) or in a version/info file within the installation directoryAffected if Version displayed is 7110 or any version below 7.1 (such as 7.0, 6.x, etc.)
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Compare against affected rangeCompare your identified version to the affected range: versions < 7.1 or = 7.1 (build 7110) are vulnerableAffected if Your installed version is 7110 or prior, or the build number is 7110 or lower
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Verify web interface accessibilityConfirm the ADManager Plus web interface is reachable on its configured port (default 8080 or 8443)Affected if The web interface is accessible from any network location where exploitation could occur
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Assess upload feature exposureDetermine if the file upload functionality is enabled and accessible to users (the vulnerability allows unauthenticated or low-privilege upload of executable files)Affected if File upload features are enabled and exposed without additional compensating controls
Your environment is affected if ADManager Plus version 7110 or any version below 7.1 is installed and the web interface with file upload functionality is 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 · scoped7.1
Upgrade to a version newer than 7110 that includes the security patch. If immediate patching is not feasible, disable or restrict the file upload functionality at the application or network level as a temporary compensating control.
Any version newer than 7.1 (the vendor released patches addressing this vulnerability in subsequent builds after version 7110)
- 1. Back up your current ADManager Plus installation and configuration
- 2. Download the latest version of ManageEngine ADManager Plus from the official vendor portal (https://www.manageengine.com/products/ad-manager/)
- 3. Install the new version following the standard upgrade procedure
- 4. After upgrade, verify the unrestricted file upload vulnerability is resolved by confirming the application no longer accepts executable file types (jsp, exe, sh, etc.) in upload functions
- 5. Test that legitimate file upload functionality still works as expected
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-37926 — 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-2021-37926 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