CVE-2017-15887

9.8 CRITICAL

Published: November 07, 2017 Modified: May 13, 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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://www.synology.com/en-global/support/security/Synology_SA_17_64_CardDAV_Server

Source: security@synology.com

Issue Tracking Vendor Advisory

https://www.synology.com/en-global/support/security/Synology_SA_17_64_CardDAV_Server

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking Vendor Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

1.9%

77th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-307 CWE-307

Affected Vendors

synology

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