CVEvulnerability
CVE-2021-26564
8.7 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-02-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.3 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 8.7 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:N
- Weaknesses
- CWE-319
Description
Cleartext transmission of sensitive information vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to spoof servers via an HTTP session.
Affected configurations
• synology diskstation manager (< 6.2.3-25426-3)
• synology vs960hd firmware
• synology skynas firmware
• synology diskstation manager unified controller 3.0
Related
Weakness · CWE (1)
- CWE-319 Cleartext Transmission of Sensitive Information weakness
References
- https://www.synology.com/security/advisory/Synology_SA_20_26 Vendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1160 Exploit, Third Party Advisory
- https://www.synology.com/security/advisory/Synology_SA_20_26 Vendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1160 Exploit, Third Party Advisory