What’s Vulnerable › Vulnerabilities

CVE-2025-11624: Buffer overwrite when processing file handles with the SFTP server

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-21 · updated 2026-10-19
• Weakness: CWE-787

Description

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.

Affected products

• wolfSSL Inc. wolfSSH: from 1.3.0 through 1.4.20

References

• https://github.com/wolfSSL/wolfssh/pull/834

Get alerted when CVE-2025-11624 or the next vulnerability affects your stack