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CVE Record

CVE-2021-27643: SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated IFF file received from untr...

SAP 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.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability can make SAP 3D Visual Enterprise Viewer crash when a user opens a malicious IFF file from an untrusted source. The impact is temporary loss of the viewer until restart, not data theft or system takeover based on the supplied CVSS data.

Executive priority

Treat as a targeted availability risk, not a crisis. Prioritize remediation where engineering, design, or partner workflows depend on SAP 3D Visual Enterprise Viewer and receive outside files.

Technical view

CVE-2021-27643 is an improper input validation issue in SAP 3D Visual Enterprise Viewer. The supplied CVSS vector requires user interaction, has low attack complexity, no privileges required, and affects availability only at low impact. The affected metadata lists SAP 3D Visual Enterprise Viewer versions below 9.

Likely exposure

Exposure is limited to organizations using SAP 3D Visual Enterprise Viewer for IFF files, especially where users receive files from external or untrusted parties. Confirm exact affected versions against SAP Note 3059999 because the provided bundle has limited version detail.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires a user to open a manipulated IFF file. The known result is application crash and temporary unavailability until restart.

Researcher notes

Evidence is incomplete beyond the CVE summary, CVSS vector, SAP Security Patch Day reference, and SAP Note link. Do not infer code execution, confidentiality impact, integrity impact, or active exploitation from the supplied sources.

Mitigation direction

  • Check SAP Note 3059999 for official remediation guidance.
  • Apply any relevant SAP update or workaround from vendor guidance.
  • Warn users not to open IFF files from untrusted sources.
  • Filter or quarantine unexpected IFF attachments at email and file gateways.
  • Prioritize systems used for external model or file exchange.

Validation and detection

  • Inventory SAP 3D Visual Enterprise Viewer installations and versions.
  • Confirm whether users handle IFF files from external sources.
  • Review helpdesk or endpoint telemetry for repeated viewer crashes.
  • Verify SAP Note 3059999 guidance has been applied.
  • Document any compensating controls for untrusted file handling.
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-2021-27643 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-2021-27643Attack 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.