CVE-2021-32979

AVEVA SuiteLink Server Null Pointer Dereference

Published Sep 23, 2021 · Updated Sep 16, 2024

Null pointer dereference in SuiteLink server while processing commands 0x04/0x0a

CVSS severityUnavailable
Unscored
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Null pointer dereference in SuiteLink server while processing commands 0x04/0x0a

The record

CVE
CVE-2021-32979
Published
Sep 23, 2021
Updated
Sep 16, 2024
Vendor
AVEVA
Product
AVEVA Communication Drivers Pack
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 23, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=unspecified <=R2

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

AVEVA · AVEVA Communication Drivers Packversion=unspecified <=R2
AVEVA · AVEVA System Platformversion=unspecified <=R2 P01
AVEVA · AVEVA Batch Managementversion=unspecified <=2020
AVEVA · AVEVA InTouch HMIversion=unspecified <=R2 P01
AVEVA · AVEVA Historianversion=unspecified <=R2 P01
AVEVA · AVEVA Manufacturing Execution Systemversion=unspecified <=R2

Published CVSS scores

No CVSS assessment is available in this record.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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