CVE-2021-26569

moderate-risk

Published 2021-03-12

Race Condition within a Thread 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.

Do I need to act?

1.8% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (1)

Diskstation Manager

Affected Vendors

Synology

References (4)

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

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-338/

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

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-338/

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 5/34 · Minimal

Exposure 5/34 · Minimal