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

Published Oct 21, 2025
·
Updated

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 Software

1 affected component
WolfSSH WolfSSH>=1.3.0<=1.4.20

Event History

Oct 21, 2025
CVE Published
via MITRE·01:14 PM
Data Sourced
via MITRE·01:14 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-11624?

CVE-2025-11624 is considered a high severity vulnerability due to the potential for stack buffer overwrite.

2

How do I fix CVE-2025-11624?

To remediate CVE-2025-11624, update WolfSSH to the latest version which includes the patch addressing this vulnerability.

3

Who is affected by CVE-2025-11624?

CVE-2025-11624 affects users of WolfSSH versions between 1.3.0 and 1.4.20.

4

What is the potential impact of CVE-2025-11624?

The potential impact of CVE-2025-11624 includes unauthorized access and the ability to execute arbitrary code on the SFTP server.

5

Does CVE-2025-11624 require authentication for exploitation?

CVE-2025-11624 can be exploited by attackers who can send specially crafted packets to the SFTP server, potentially without authentication.

Contact

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