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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-30192

CODESYS V2 Web-Server before 1.1.9.20 has an Improperly Implemented Security Check.

CRITICAL 9.8EPSS 1.12%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CODESYS V2 Web-Server before 1.1.9.20 has an Improperly Implemented Security Check.

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
1.12% probability · 66th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
wago/750-893 firmware · wago/750-891 firmware · wago/750-890 firmware · wago/750-889 firmware · wago/750-885 firmware · wago/750-882 firmware · wago/750-881 firmware · wago/750-880 firmware · wago/750-862 firmware · wago/750-852 firmware · wago/750-832 firmware · wago/750-831 firmware · wago/750-829 firmware · wago/750-8202 firmware · wago/750-8203 firmware · wago/750-8204 firmware · wago/750-8206 firmware · wago/750-8207 firmware · wago/750-8208 firmware · wago/750-8210 firmware · +8 more
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.12%26 October 202626 October 2026

EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.