CVE-2023-1620 — Multiple WAGO devices in multiple versions may allow an authenticated remote att

Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a specifically crafted packet to the CODESYS V2 runtime.

01What is this vulnerability?

Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a specifically crafted packet to the CODESYS V2 runtime.

02Affected products

Vendor	Product	Versions
Wago	750	8202/xxx-xxx — FW1
Wago	750	8203/xxx-xxx — FW1
Wago	750	8204/xxx-xxx — FW1
Wago	750	8206/xxx-xxx — FW1
Wago	750	8207/xxx-xxx — FW1
Wago	750	8208/xxx-xxx — FW1
Wago	750	8210/xxx-xxx — FW1
Wago	750	8211/xxx-xxx — FW1
Wago	750	8212/xxx-xxx — FW1
Wago	750	8213/xxx-xxx — FW1
Wago	750	8214/xxx-xxx — FW1
Wago	750	8216/xxx-xxx — FW1
Wago	750	8217/xxx-xxx — FW1
Wago	750	823 — FW1
Wago	750	332 — FW1
Wago	750	832/xxx-xxx — FW1
Wago	750	862 — FW1
Wago	750	890/xxx-xxx — FW1
Wago	750	891 — FW1
Wago	750	893 — FW1
Wago	750	331 — FW1
Wago	750	829 — FW1
Wago	750	831/xxx-xxx — FW1
Wago	750	852 — FW1
Wago	750	880/xxx-xxx — FW1
Wago	750	881 — FW1
Wago	750	882 — FW1
Wago	750	885/xxx-xxx — FW1
Wago	750	889 — FW1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-06-26T06:19:30.928Z
• Last modified: 2024-11-12T14:11:36.673Z

09References

• cert.vde.com — https://cert.vde.com/en/advisories/VDE-2023-006/