cve.bz

CVE-2021-34566

9.1 criticalEPSS 1.2%

Critical (9.1) in wago. EPSS 1.2% chance of exploitation in the next 30 days.

In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to crash the iocheck process and write memory resulting in loss of integrity and DoS.

Severity

CVSS 3.1

9.1 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE
CWE-120
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON