CVE-2023-1150 — Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow a

Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS the MODBUS server with specially crafted packets.

01What is this vulnerability?

Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS the MODBUS server with specially crafted packets.

02Affected products

Vendor	Product	Versions
WAGO	750	332 — 0
WAGO	750	362/xxx-xxx — 0
WAGO	750	363/xxx-xxx — 0
WAGO	750	364/xxx-xxx — 0
WAGO	750	365/xxx-xxx — 0
WAGO	750	823 — 0
WAGO	750	832/xxx-xxx — 0
WAGO	750	862 — 0
WAGO	750	890/xxx-xxx — 0
WAGO	750	891 — 0
WAGO	750	893 — 0

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: 2023-06-26T06:19:53.942Z
• Last modified: 2024-12-05T19:07:34.007Z

09References

• cert.vde.com — https://cert.vde.com/en/advisories/VDE-2023-005/