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.
CVE-2025-54792
This medium-severity CVE scores 6.8 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 93% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.8
- EG Score
- 6.8(medium)
- EPSS
- 17.1%
- KEV
- Not listed
Published
August 1, 2025
Last Modified
September 3, 2025
References (4)
- security-advisories@githubhttps://github.com/localsend/localsend/commit/e8635204ec782ded45bc7d698deb60f3c4105687
- security-advisories@githubhttps://github.com/localsend/localsend/releases/tag/v1.17.0
- security-advisories@githubhttps://github.com/localsend/localsend/security/advisories/GHSA-424h-5f6m-x63f
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/localsend/localsend/security/advisories/GHSA-424h-5f6m-x63f
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
What is CVE-2025-54792?
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What is the CVSS score of CVE-2025-54792?
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Dependency Blast Radius
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