AUGUST 4, 2026
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Case File

CVE-2021-26566

HIGH · CVSS 8.3 EPSS 1.49%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-26 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.3. See the original NVD description below for full technical details.

CVE
CVE-2021-26566
Severity
HIGH
CVSS
8.3
EPSS
1.49%

Original NVD Description

Insertion of sensitive information into sent data vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary commands via inbound QuickConnect traffic.

Related CVEs

Other vulnerabilities affecting the same vendor(s)