What is CVE-2021-30190?

CVE-2021-30190 is a critical-severity vulnerability in Codesys V2_web_server, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-05-25.

How severe is CVE-2021-30190?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-30190 known to be exploited?

9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Codesys V2_web_server

CVE-2021-30190

CODESYS V2 Web-Server before 1.1.9.20 has Improper Access Control.

Vulnerability class: Broken Authentication

EPSS: 0.014 (69.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

References

cve@mitre.org (Permissions Required, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30190?: CVE-2021-30190 is a critical-severity vulnerability in Codesys V2_web_server, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-05-25.
How severe is CVE-2021-30190?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-30190 known to be exploited?: 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.