CVE-2021-45981
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 · uneditedNetScout nGeniusONE 6.3.2 allows an XML External Entity (XXE) attack.
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 confidenceNetScout nGeniusONE version 6.3.2 contains a vulnerable XML parser that processes external entity references, allowing an unauthenticated attacker to exploit XML External Entity (XXE) injection. This can lead to disclosure of internal system files, denial of service, or server-side request forgery (SSRF) by crafting malicious XML payloads.
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= 6.3.2CVSS 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
- 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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Identify nGeniusONE installationLocate the nGeniusONE application installation directory, typically found in C:\Program Files\NetScout\nGeniusONE or /opt/nGeniusONE on Linux systems. Check for running processes named nGeniusONE or ngservice.Affected if nGeniusONE software is not installed on the system
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Confirm installed versionNavigate to the nGeniusONE installation directory and locate the version information file, or access the About/Help section in the nGeniusONE administrative web interface. Common version file locations include version.info, version.txt, or within the config directory.Affected if The installed version is 6.3.2 exactly (version equals 6.3.2 as indicated by the = in affected versions)
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Identify XML processing endpointsReview the nGeniusONE web interface or API documentation to identify endpoints or features that accept XML input. Common areas include data import functions, configuration upload features, or reporting modules that parse XML files.Affected if XML input handling functionality is exposed or accessible in the deployment
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Check XML parser configurationExamine the nGeniusONE configuration files (typically in conf or config subdirectories) for XML parser settings. Look for configuration parameters related to DTD processing, external entity handling, or secure XML parsing.Affected if The XML parser is configured to allow external entity processing or DTD processing is not explicitly disabled
You are affected if NetScout nGeniusONE version 6.3.2 is installed and XML input processing features are accessible without external entity restrictions configured.
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 dataDisable external entity processing in the application's XML parser configuration, implement secure XML parsing by disabling DTDs and external entities, or apply vendor-provided patches if 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-2021-45981 — 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-2021-45981 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