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CVE Record

CVE-2021-33660: SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated FLI file received from untr...

SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated FLI 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.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE is a denial-of-service issue in SAP 3D Visual Enterprise Viewer. A user opening a manipulated FLI file from an untrusted source can crash the application, making it unavailable until restart. The cited impact is limited to availability, not data theft or system takeover.

Executive priority

Treat as a moderate workstation availability risk. It is not presented as data theft or system compromise, but it can disrupt users who rely on the Viewer. Prioritize remediation where external file exchange is common or the application supports critical engineering workflows.

Technical view

The issue is improper input validation during FLI file handling in SAP 3D Visual Enterprise Viewer. CVSS 3.0 is 4.3 with network attack vector, low complexity, no privileges, required user interaction, unchanged scope, and low availability impact only. The affected version evidence is inconsistent between the title/description and affected list.

Likely exposure

Exposure is most likely on workstations using SAP 3D Visual Enterprise Viewer where users receive or open FLI files from external or untrusted sources. The bundle lists SAP 3D Visual Enterprise Viewer versions before 9, while the title and description reference version 9.

Exploitation context

The bundle does not show CISA KEV listing or other evidence of active exploitation. Successful triggering requires a user to open a manipulated FLI file. The documented result is an application crash requiring restart, not remote code execution or data compromise.

Researcher notes

Source evidence is limited. No CWE is listed, and no exploit status beyond non-KEV is provided. The affected version data is ambiguous: the affected list says versions before 9, while the title and description reference version 9. Validate against SAP Note 3059999 before scoping.

Mitigation direction

  • Check SAP Note 3059999 for vendor remediation guidance.
  • Inventory SAP 3D Visual Enterprise Viewer installations and versions.
  • Discourage opening FLI files from untrusted sources.
  • Quarantine or block unsolicited FLI files where business use is unnecessary.
  • Prioritize updates or controls for teams handling external 3D content.

Validation and detection

  • Confirm whether SAP 3D Visual Enterprise Viewer is installed.
  • Compare installed versions against SAP Note 3059999 guidance.
  • Identify users or workflows that receive external FLI files.
  • Review endpoint telemetry for Viewer crashes after FLI handling.
  • Verify mail and download controls treat FLI files appropriately.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2021-33660 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.3CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2021-33660Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SAP SESAP 3D Visual Enterprise Viewer< 9Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.