CVE-2021-21464Network attack vector

Application crash via malformed PCX file parsing

Published Jan 12, 2021 · Updated Aug 3, 2024

Improper input validation in SAP 3D Visual Enterprise Viewer before 9 allows context-dependent attackers to crash it via a crafted PCX file. The PCX parser insufficiently validates file contents before processing them, causing the Viewer process to terminate. Exploitation requires a user to open an attacker-supplied file, and service remains unavailable until the application is restarted.

CVSS severity4.3
Medium
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in SAP 3D Visual Enterprise Viewer before 9 allows context-dependent attackers to crash it via a crafted PCX file. The PCX parser insufficiently validates file contents before processing them, causing the Viewer process to terminate. Exploitation requires a user to open an attacker-supplied file, and service remains unavailable until the application is restarted.

The record

CVE
CVE-2021-21464
Published
Jan 12, 2021
Updated
Aug 3, 2024
Vendor
SAP SE
Product
SAP 3D Visual Enterprise Viewer
Classifications
CWE-20, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SAP SE · SAP 3D Visual Enterprise Viewerversion=< 9

Published CVSS scores

4.3SAP SECVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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