CVE - CVE-2025-52570

CVE-ID
CVE-2025-52570	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/mbuesch/letmein/commit/43207cd77580410d97165d1e3c07361ba6f3558c URL:https://github.com/mbuesch/letmein/commit/43207cd77580410d97165d1e3c07361ba6f3558c MISC:https://github.com/mbuesch/letmein/security/advisories/GHSA-jpv7-p47h-f43j URL:https://github.com/mbuesch/letmein/security/advisories/GHSA-jpv7-p47h-f43j
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20250618	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250618)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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