CVE-2021-26560 — CRITICAL (9.0)

Q: How severe is CVE-2021-26560?

CVE-2021-26560 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-26560?

Check the references section above for vendor advisories and patch information. Affected products include: Synology Diskstation Manager, Synology Vs960Hd Firmware, Synology Vs960Hd, Synology Skynas Firmware, Synology Skynas.

Vulnerability Description

Cleartext transmission of sensitive information vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to spoof servers via an HTTP session.

CVSS Score

9.0

CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Synology	Diskstation Manager	< 6.2.3-25426-3
Synology	Vs960Hd Firmware	-
Synology	Vs960Hd	-
Synology	Skynas Firmware	-
Synology	Skynas	-
Synology	Diskstation Manager Unified Controller	3.0
Synology	Uc3200	-

Related Weaknesses (CWE)

CWE-319

References

https://www.synology.com/security/advisory/Synology_SA_20_26Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1159ExploitThird Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_26Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1159ExploitThird Party Advisory

FAQ

What is CVE-2021-26560?

CVE-2021-26560 is a vulnerability with a CVSS score of 9.0 (CRITICAL). Cleartext transmission of sensitive information vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to spoof servers via a...

How severe is CVE-2021-26560?

CVE-2021-26560 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-26560?

Check the references section above for vendor advisories and patch information. Affected products include: Synology Diskstation Manager, Synology Vs960Hd Firmware, Synology Vs960Hd, Synology Skynas Firmware, Synology Skynas.