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CVE Record

CVE-2021-27640: SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated PSD file received from untr...

SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated PSD 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 PSD file from an untrusted source can crash the application, making it unavailable until restart. The cited data does not show data theft, data modification, or confirmed active exploitation.

Executive priority

Treat as a moderate operational availability issue, not a data breach signal based on the provided evidence. Prioritize affected user groups that rely on the Viewer for business workflows or regularly process externally supplied PSD files.

Technical view

The issue is attributed to improper input validation when SAP 3D Visual Enterprise Viewer processes PSD files. CVSS 3.0 is 4.3 with network attack vector, low complexity, no privileges, required user interaction, and low availability impact only. Source data is inconsistent on affected version wording; confirm exact coverage with SAP Note 3059999.

Likely exposure

Exposure is mainly desktop or workstation environments where SAP 3D Visual Enterprise Viewer is installed and users receive or open PSD files from external or untrusted sources.

Exploitation context

The bundle marks CISA KEV status as false and provides no cited evidence of active exploitation. Exploitation requires user interaction: opening a manipulated PSD file. Impact appears limited to application crash and temporary loss of availability until restart.

Researcher notes

Primary uncertainty is affected-version scope: the description refers to version 9, while the supplied affected list says versions before 9. Validate against SAP Note 3059999 before scoping. No CWE is listed in the bundle, but the description identifies improper input validation.

Mitigation direction

  • Review SAP Note 3059999 for the vendor-confirmed fix or workaround.
  • Apply the relevant SAP security update if SAP identifies one for your installed version.
  • Restrict opening PSD files from untrusted senders or external repositories.
  • Route suspicious PSD files through established malware and content-screening controls.
  • Educate affected users to avoid unsolicited design or image files.

Validation and detection

  • Inventory endpoints running SAP 3D Visual Enterprise Viewer.
  • Confirm installed versions against SAP Note 3059999 and the CVE record.
  • Identify teams that open PSD files from outside the organization.
  • Review endpoint logs for repeated Viewer crashes after PSD handling.
  • Verify users can restart safely without losing critical operational work.
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-2021-27640 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-2021-27640Attack 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.