CVE-2021-33661
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 · uneditedSAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated PCX file received from untrusted sources which results in crashing of the application and becoming temporarily unavailable until the user restarts the application, this is caused due to Improper Input Validation.
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 confidenceSAP 3D Visual Enterprise Viewer version 9 contains an improper input validation vulnerability in its PCX image file parser. When a user opens a maliciously crafted PCX file from an untrusted source, the application crashes due to malformed data being processed without proper validation, causing a denial of service condition that requires restarting the application.
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= 9CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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 if SAP 3D Visual Enterprise Viewer is installedCheck the Windows registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall for an entry named 'SAP 3D Visual Enterprise Viewer', or look in Program Files for a folder named 'SAP 3D Visual Enterprise Viewer'Affected if The application is present with version 9 installed
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Confirm the installed version numberIf the application is found, locate its version by right-clicking the executable file (typically named "Viewer.exe" in the installation directory), selecting Properties, and checking the Details tab for the File VersionAffected if The version listed is exactly 9.0 or shows version 9 as the primary version number
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Determine if the PCX image parser is in useThe PCX image parser is a built-in component of the viewer and is automatically available when the application is installed; no separate module enablement is requiredAffected if The application is installed and capable of opening image files, which includes PCX format support by default
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Verify exposure to untrusted PCX filesCheck whether users in the environment have the ability to open or import PCX image files from external or untrusted sources, as the vulnerability is triggered only when a malicious PCX file is openedAffected if Users can open PCX files from untrusted sources and the application will attempt to parse them using the vulnerable parser
You are affected if SAP 3D Visual Enterprise Viewer version 9 is installed and users can open PCX files from untrusted sources, as the vulnerability lies in the built-in PCX parser processing malformed data without proper validation.
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 dataOrganizations should train users to avoid opening PCX files from untrusted or unknown sources. Apply any SAP security patches when available. Consider using application sandboxing or virtualization to contain crash impacts.
- Consultation2.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-33661 — 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-2021-33661 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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