Wolfssh is a focused SSH library implementation with a niche but prominent footprint in embedded systems and lightweight server applications. Its vulnerability disclosures, while modest in volume, skew strongly toward critical-severity outcomes and recur through memory-safety and authentication-oriented weakness classes including out-of-bounds read and write conditions, buffer over-reads, integer overflows, and improper authentication mechanisms that are characteristic of low-level protocol handlers. Defenders should prioritize this vendor's security updates given the criticality tendency and the role SSH libraries play in remote-access infrastructure; live severity, exploitation, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Wolfssh over time
Signals from CVEs in this vendor scope (7 CVEs).
7 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2025-11625CRITICAL Improper host authentication vulnerability in wolfSSH version 1.4.20 and earlier clients that allows authentication bypass and leaking of clients credentials. | Oct 21, 2025 | 9.8 | 32 | NO | NO |
CVE-2025-11624CRITICAL Potential stack buffer overwrite on the SFTP server side when receiving a malicious packet that has a handle size larger than the system handle or file descriptor size, but smaller | Oct 21, 2025 | 9.8 | 32 | NO | NO |
CVE-2025-14942CRITICAL wolfSSH’s key exchange state machine can be manipulated to leak the client’s password in the clear, trick the client to send a bogus signature, or trick the client into skipping us | Jan 6, 2026 | 9.8 | 30 | NO | NO |
CVE-2022-32073CRITICAL WolfSSH v1.4.7 was discovered to contain an integer overflow via the function wolfSSH_SFTP_RecvRMDIR. | Jul 13, 2022 | 9.8 | 30 | NO | NO |
CVE-2025-15382HIGH A heap buffer over-read vulnerability exists in the wolfSSH_CleanPath() function in wolfSSH. An authenticated remote attacker can trigger the issue via crafted SCP path input conta | Jan 6, 2026 | 8.1 | 26 | NO | NO |
CVE-2024-2873CRITICAL 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, resu | Mar 25, 2024 | 9.1 | 26 | NO | NO |
CVE-2026-0930MEDIUM Potential read out of bounds case with wolfSSHd on Windows while handling a terminal resize request. An authenticated user could trigger the out of bounds read after establishing a | Apr 20, 2026 | 4.3 | 18 | NO | NO |
Signals from CVEs in this vendor scope (7 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Wolfssh.
Media articles that mention a CVE ID that affects a product developed by Wolfssh — matched by CVE ID, not by vendor name.