The server permits communication without any authentication procedure, allowing the attacker to initiate a session with the server without providing any form of authentication.
Published 2021-10-22 12:15:08
Updated 2022-10-27 16:33:40
Source ICS-CERT
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Products affected by CVE-2021-38457

Exploit prediction scoring system (EPSS) score for CVE-2021-38457

0.21%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 59 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-38457

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
ICS-CERT
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2021-38457

  • The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
    Assigned by: ics-cert@hq.dhs.gov (Secondary)
  • The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-38457

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