CVE-2017-15887

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An improper restriction of excessive authentication attempts vulnerability in /principals in Synology CardDAV Server before 6.0.7-0085 allows remote attackers to obtain user credentials via a brute-force attack.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-307

Affected software

Vendor	Product	Versions
Synology	Synology CardDAV Server	before 6.0.7-0085

References

https://www.synology.com/en-global/support/security/Synology_SA_17_64_CardDAV_ServerIssue Tracking, Vendor Advisory
https://www.synology.com/en-global/support/security/Synology_SA_17_64_CardDAV_ServerIssue Tracking, Vendor Advisory

Timeline

Published: Nov 7, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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