CVE-2021-27647

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Out-of-bounds Read vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 12, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-27647: Critical severity, CVSS 9.8 | Vulnix