Man-in-the-Middle Vulnerability in LocalSend App by LocalSend
CVE-2025-54792

9.3CRITICAL

Key Information:

Vendor

Localsend

Status
Localsend
Vendor
CVE Published:
1 August 2025

What is CVE-2025-54792?

LocalSend, an open-source app for secure file and message sharing over local networks, is susceptible to a Man-in-the-Middle vulnerability in versions up to 1.16.1. This flaw allows attackers on the same local network to impersonate legitimate devices, enabling them to intercept, read, and modify file transfers without authentication. The stealthy nature of the attack poses significant risks, potentially leading to sensitive data theft or malware injection, including ransomware, into shared files. Users are urged to upgrade to version 1.17.0 for protection against this security issue.

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Deploy the Patch

Affected Version(s)

localsend <= 1.17.0

References

https://github.com/localsend/localsend/security/advisorie...
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https://github.com/localsend/localsend/commit/e8635204ec7...
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https://github.com/localsend/localsend/releases/tag/v1.17.0
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CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

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