CVE-2024-2873 User authentication bypass in wolfSSH server
A malicious client can bypass user authentication in wolfSSH server to create channels and gain unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-2873?
CVE-2024-2873 is a critical authentication bypass vulnerability in wolfSSL Inc. wolfSSH, published on 25 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in wolfSSH's server-side state machine before versions 1.4.17. A malicious client could create channels without first performing user authentication, resulting in unauthorized access.
Weakness: CWE-287
Which versions are affected by CVE-2024-2873?
It affects 1 product.
Products include Wolfssh Wolfssh.
How do I fix CVE-2024-2873?
No fix has been published for CVE-2024-2873 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-2873 being exploited?
There is no known exploitation of CVE-2024-2873 in the wild and no public exploit code.
Other vulnerabilities in wolfSSL Inc. wolfSSH
- CVE-2022-32073 Integer overflow in n/a
- CVE-2025-14942 Authentication Bypass
- CVE-2025-11625 Host verification bypass and credential leak
- CVE-2026-16516 wolfSSH ECDSA host key curve not validated against negotiated algorithm
- CVE-2026-83540 wolfSSHd on Windows race condition leading to logon token reused across connections
Sources
Also known as GHSA-6w42-c4vx-prcr.