CVE-2021-27643
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 IFF 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 · high confidenceSAP 3D Visual Enterprise Viewer version 9 contains an improper input validation vulnerability in its IFF (Interchange File Format) file parser. When a user opens a maliciously crafted IFF file from an untrusted source, the viewer crashes and becomes unavailable until restarted. This is a denial-of-service vulnerability caused by the application failing to properly validate input data structures within the IFF file before processing.
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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Confirm SAP 3D Visual Enterprise Viewer is installedCheck the installed programs list on the system for 'SAP 3D Visual Enterprise Viewer' or search for the executable file (typically in Program Files)Affected if The application is present on the system
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Identify the installed versionRight-click the application executable, select Properties, and check the Version tab, or run 'sap3dveviewer.exe -version' from the command line if supportedAffected if The version number is exactly 9 (the affected version)
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Verify IFF file handling capabilityCheck if the application has IFF file type associations registered (look for .iff extension in Windows Registry under HKEY_CLASSES_ROOT or in the application's supported format list)Affected if IFF file format support is enabled or registered in the viewer
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Look for crash logs or application failure indicatorsCheck Windows Event Viewer under Application logs for recent crashes related to sap3dveviewer.exe, or check for recent application error reportsAffected if The viewer has crashed when processing IFF files and become unavailable until restart
A system is affected if SAP 3D Visual Enterprise Viewer version 9 is installed and IFF file processing capability is enabled, allowing a malicious IFF file to crash the application.
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 enforce policies preventing users from opening IFF files from untrusted or external sources. Consider implementing file type restrictions or sandboxing for SAP 3D Visual Enterprise Viewer until an official patch is available from SAP.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 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 $4,480.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-27643 — 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-2021-27643 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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