LiveActive security incident?Get immediate response
CVE Record

CVE-2021-33659: SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated GIF file received from untr...

SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated GIF 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
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue can crash SAP 3D Visual Enterprise Viewer when a user opens a specially manipulated GIF from an untrusted source. The known impact is temporary loss of the application until restart, not data theft or system takeover. Business urgency depends on how widely the viewer is deployed and whether users receive external design or image files.

Executive priority

Treat as a targeted availability issue, not an enterprise compromise indicator. Prioritize remediation for teams that rely on SAP 3D Visual Enterprise Viewer for production workflows or routinely receive external files.

Technical view

CVE-2021-33659 is an improper input validation flaw in SAP 3D Visual Enterprise Viewer affecting GIF file handling. CVSS 3.0 is 4.3 with required user interaction, no privileges, and low availability impact only. Source data is inconsistent on versions, naming version 9 in text while affected metadata lists versions below 9.

Likely exposure

Exposure is most likely on workstations using SAP 3D Visual Enterprise Viewer where users open externally supplied GIF files. Organizations not using this viewer, or not processing untrusted GIF content through it, have limited practical exposure.

Exploitation context

The source bundle does not show CISA KEV listing or evidence of active exploitation. The described scenario requires a user to open a manipulated GIF file received from an untrusted source, causing an application crash and temporary unavailability.

Researcher notes

The available public data supports denial of service through malformed GIF parsing only. Do not assume confidentiality or integrity impact. Version evidence should be verified against SAP Note 3059999 because the source bundle’s affected-version wording is ambiguous.

Mitigation direction

  • Review SAP Security Note 3059999 and SAP June 2021 guidance for confirmed affected versions.
  • If SAP confirms impact, apply the vendor-provided correction for the supported viewer version.
  • Limit opening GIF files from untrusted sources in SAP 3D Visual Enterprise Viewer.
  • Use email and endpoint controls to quarantine suspicious or unexpected image attachments.
  • Educate affected users to avoid unexpected external GIF files in this viewer.

Validation and detection

  • Inventory SAP 3D Visual Enterprise Viewer installations and recorded versions.
  • Compare installed versions with SAP Note 3059999 and the SAP advisory entry.
  • Confirm whether users receive external GIF files for viewing in this application.
  • Check endpoint telemetry for repeated viewer crashes after opening GIF attachments.
  • Document any version ambiguity and resolve it through SAP support guidance.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2021-33659 mapping review

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

Open ATT&CK lookup
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-2021-33659Attack 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.