Buffer overflow in Wolfssh
CVE-2025-11624
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 than max handle size allowed.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (26.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Wolfssh — versions 1.3.0
Weakness classification (CWE)
References
- facts@wolfssl.com (Issue Tracking)
Frequently asked questions
- What is CVE-2025-11624?
- CVE-2025-11624 is a critical-severity vulnerability in Wolfssh, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-10-21.
- How severe is CVE-2025-11624?
- Critical severity. CVSS v3 base score is 9.8 out of 10.