Improper Host Authentication in wolfSSH Clients by wolfSSL
CVE-2025-11625

9.4CRITICAL

Key Information:

Vendor

Wolfssh

Status
Wolfssh
Vendor
CVE Published:
21 October 2025

What is CVE-2025-11625?

wolfSSH versions 1.4.20 and earlier contain an improper host authentication vulnerability that may allow attackers to bypass authentication mechanisms. This flaw can lead to the unauthorized access and leakage of client credentials, posing significant security risks for users relying on secure communication through wolfSSH. Users are strongly encouraged to upgrade to the latest version to mitigate potential exposure.

Affected Version(s)

wolfSSH 1.4.20;0

References

https://github.com/wolfSSL/wolfssh/pull/840

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-11625 : Improper Host Authentication in wolfSSH Clients by wolfSSL