CVE-2021-34569

WAGO I/O-Check Service prone to Out-of-bounds Write

CVSS 9.8 CRITICALEPSS 0.8%CWE-787

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.8EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 Nov 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In WAGO I/O-Check Service in multiple products an attacker can send a specially crafted packet containing OS commands to crash the diagnostic tool and write memory.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

WAGO · 750-81xx/xxx-xxxFW WAGO · 750-82xx/xxx-xxx WAGO · 752-8303/8000-0002 WAGO · 762-4xxx WAGO · 762-5xxx WAGO · 762-6xxx

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References

https://cert.vde.com/en/advisories/VDE-2020-036/