Detections
Analytics

CVE-2021-38457

critical

Description

The server permits communication without any authentication procedure, allowing the attacker to initiate a session with the server without providing any form of authentication.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01

Details

Source: Mitre, NVD

Published: 2021-10-22

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.0026