codesys v2 web server

Name: codesys v2 web server
Brand: codesys

productUS

cpe:2.3:a:codesys:v2_web_server:*:*:*:*:*:*:*:*

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

KEV-listed

public exploit

EPSS ≥ 10%

unpatched

by severity

5critical1high0medium0low

updated 2026-10-25

vulnerabilities (6)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2021-30190US	critical9.8OT elevated	1.39% (72nd)	—	1.1.9.20	2021-05-25	< 1.1.9.20
CVE-2021-30189US	critical9.8	1.24% (69th)	—	1.1.9.20	2021-05-25	< 1.1.9.20
CVE-2021-30193US	critical9.8	1.12% (66th)	—	1.1.9.20	2021-05-25	< 1.1.9.20
CVE-2021-30192US	critical9.8OT elevated	1.12% (66th)	—	1.1.9.20	2021-05-25	< 1.1.9.20
CVE-2021-30194US	critical9.1	1.12% (66th)	—	1.1.9.20	2021-05-25	< 1.1.9.20
CVE-2021-30191US	high7.5	0.99% (62nd)	—	1.1.9.20	2021-05-25	< 1.1.9.20

The flaw types (CWEs) most of these CVEs share.

CWE-787Out-of-bounds Write2 CVEs
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')1 CVEs
CWE-121Stack-based Buffer Overflow1 CVEs
CWE-125Out-of-bounds Read1 CVEs
CWE-284Improper Access Control1 CVEs
CWE-306Missing Authentication for Critical Function1 CVEs
CWE-358Improperly Implemented Security Check for Standard1 CVEs
CWE-668Exposure of Resource to Wrong Sphere1 CVEs

Which sources assert this record, and when.

scry

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