CVE-2025-54792

CRITICAL EPSS 15.5%
Published Aug 1, 202511mo ago · Modified Jun 17, 20262w ago
9.3 CVSS 4.0
Critical
Find Similar
Published Aug 1, 2025 11mo ago
Last Modified Jun 17, 2026 2w ago

Description

LocalSend is an open-source app to securely share files and messages with nearby devices over local networks without needing an internet connection. In versions 1.16.1 and below, a critical Man-in-the-Middle (MitM) vulnerability in the software's discovery protocol allows an unauthenticated attacker on the same local network to impersonate legitimate devices, silently intercepting, reading, and modifying any file transfer. This can be used to steal sensitive data or inject malware, like ransomware, into files shared between trusted users. The attack is hardly detectable and easy to implement, posing a severe and immediate security risk. This issue was fixed in version 1.17.0.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
15.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-300
CWE-345

Affected Products 1

VendorProductVersionRange
localsendlocalsend* <1.17.0

References 3

  • github.com https://github.com/localsend/localsend/commit/e8635204ec782ded45bc7d698deb60f3c4105687
    Patch
  • github.com https://github.com/localsend/localsend/releases/tag/v1.17.0
    Release Notes
  • github.com https://github.com/localsend/localsend/security/advisories/GHSA-424h-5f6m-x63f
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/localsend/localsend/commit/e8635204ec782ded45bc7d698deb60f3c4105687
    Patch