SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-34569

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.

CRITICAL 9.8EPSS 0.85%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.85% probability · 56th percentile
CISA KEV
Not listed
Weakness
CWE-787
Affected
wago/750-8100 firmware · wago/750-8101 firmware · wago/750-8101\/025-000 firmware · wago/750-8102 firmware · wago/750-8102\/025-000 firmware · wago/750-8202 firmware · wago/750-8202\/000-011 firmware · wago/750-8202\/000-012 firmware · wago/750-8202\/000-022 firmware · wago/750-8202\/025-000 firmware · wago/750-8202\/025-001 firmware · wago/750-8202\/025-002 firmware · wago/750-8202\/040-000 firmware · wago/750-8202\/040-001 firmware · wago/752-8303\/8000-002 firmware · wago/762-4101 firmware · wago/762-4102 firmware · wago/762-4103 firmware · wago/762-4104 firmware · wago/762-4201\/8000-001 firmware · +29 more
Source
info@cert.vde.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.