CVE-2025-66549

CWE-2094 documents4 sources
Severity
2.7LOW
EPSS
0.0%
top 89.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud Security-advisoriesNextcloud Desktop
Timeline
PublishedDec 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:NExploitability: 0.9 | Impact: 1.4

Affected Packages3 packages

▶NVDnextcloud/desktop3.0.0 — 3.16.5
▶Debiannextcloud-desktop< 3.16.6-3+1
▶CVEListV5nextcloud/security-advisories< 3.16.5

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
OSV
CVE-2025-66549: Nextcloud Desktop is the desktop sync client for Nextcloud↗2025-12-05
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CVEList
Nextcloud Desktop discloses information when attempting to lock a file inside a end-to-end encrypted directory↗2025-12-05
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📋Vendor Advisories

1
Debian
CVE-2025-66549: nextcloud-desktop - Nextcloud Desktop is the desktop sync client for Nextcloud. Prior to 3.16.5, whe...↗2025
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