{"id":"CVE-2025-66549","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-66549","generatedAt":"2026-10-28T02:17:56.326Z","title":"This vulnerability is fixed in 3.16.5.","description":"Nextcloud Desktop is the desktop sync client for Nextcloud. Prior to 3.16.5, when trying to manually lock a file inside an end-to-end encrypted directory, the path of the file was sent to the server unencrypted, making it possible for administrators to see it in log files. This vulnerability is fixed in 3.16.5.","published":"2025-12-05T18:15:58.000Z","lastModified":"2026-10-15T21:10:00.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":2.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-209"],"affected":["nextcloud/desktop"],"epss":{"score":0.00297,"percentile":0.22175,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/nextcloud/desktop/commit/36d6c234d42b06a6f2e9de3e413a5c3c625edad6","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/nextcloud/desktop/pull/8330","tags":["Issue Tracking"],"source":"security-advisories@github.com"},{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h9xj-qh76-q3hw","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://hackerone.com/reports/3159877","tags":["Permissions Required","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-66549","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}