CVE-2021-21449
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 · moderate confidenceSAP 3D Visual Enterprise Viewer version 9 contains improper input validation when parsing IFF (Interchange File Format) files. A specially crafted malicious IFF file from an untrusted source can trigger a crash, rendering the application unavailable until the user restarts it. This is a denial-of-service vulnerability with high severity (CVSS 8.8).
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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 SAP 3D Visual Enterprise Viewer installationLocate the application on the system by checking Program Files for the SAP 3D Visual Enterprise Viewer folder, or check Windows Add/Remove ProgramsAffected if SAP 3D Visual Enterprise Viewer is present on the system
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Verify installed version is exactly 9Right-click the application executable (typically veviewer.exe in the installation directory), select Properties, and view the File Version or Product Version field; alternatively, right-click in Add/Remove Programs and select Details to view the versionAffected if The installed version is exactly 9 (version 9.0.x or 9.0.0)
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Determine if IFF file parsing is accessibleCheck if the application can open IFF files by attempting to open a test .iff file, or verify .iff file association points to this viewer, or inspect the application's supported import formats in its file open dialogAffected if IFF files can be opened or processed by the viewer
The environment is affected if SAP 3D Visual Enterprise Viewer version 9 is installed and IFF file parsing 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.
From vendor dataApply the vendor patch when released by SAP. As a workaround, avoid opening IFF files from untrusted or unknown sources. Implement enterprise-level file handling policies to restrict or scan untrusted file types before opening.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-21449 — 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-2021-21449 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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