CVE-2021-27646

critical

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

https://www.zerodayinitiative.com/advisories/ZDI-21-340/

https://www.zerodayinitiative.com/advisories/ZDI-21-339/

https://www.synology.com/security/advisory/Synology_SA_20_26

Details

Source: Mitre, NVD

Published: 2021-03-12

Updated: 2021-03-26

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical