CVE-2025-52570

Letmein is an authenticating port knocker. Prior to version 10.2.1, The connection limiter is implemented incorrectly. It allows an arbitrary amount of simultaneously incoming connections (TCP, UDP and Unix socket) for the services letmeind and letmeinfwd. Therefore, the command line option num-connections is not effective and does not limit the number of simultaneously incoming connections. This issue has been patched in version 10.2.1.

CVSS

No CVSS.

References

Link	Resource
https://github.com/mbuesch/letmein/commit/43207cd77580410d97165d1e3c07361ba6f3558c
https://github.com/mbuesch/letmein/security/advisories/GHSA-jpv7-p47h-f43j

Configurations

No configuration.

History

26 Jun 2025, 18:58

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-24 04:15

Updated : 2025-06-26 18:58

NVD link : CVE-2025-52570

Mitre link : CVE-2025-52570

CVE.ORG link : CVE-2025-52570

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

CWE-799

Improper Control of Interaction Frequency

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