CVE-2021-27646

CRITICAL

Synology DSM <6.2.3-25426-3 - Use After Free

Title source: llm
STIX 2.1

Description

Use After Free 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.

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-340/

Scores

CVSS v3 9.8
EPSS 0.0220
EPSS Percentile 84.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (1)
synology/diskstation_manager < 6.2.3-25426-3
Published Mar 12, 2021
Tracked Since Feb 18, 2026