CVE-2024-2873: critical vulnerability in wolfSSL Inc. wolfSSH
User authentication bypass in wolfSSH server
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
wolfSSL Inc. · wolfSSHRelated CVEs — wolfSSL Inc. wolfSSH
In the same product, most dangerous first.
CVE-2026-84897MEDIUMwolfSSH server accepts server-to-client DH group exchange messages from an unauthenticated client, causing pre-authentication primality-test CPU exhaustion and key exchange role confusionEPSS 0.5%CVE-2026-83742MEDIUMwstrncat() unsigned integer underflow leads to an off-by-one null write in wolfSSH on non-Windows platformsEPSS 0.4%CVE-2026-81535MEDIUMwolfSSH SSH client accepts unsolicited forwarded-tcpip channel opens without an authorization checkEPSS 0.3%CVE-2026-16516CRITICALwolfSSH ECDSA host key curve not validated against negotiated algorithmEPSS 0.2%