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CVE-2021-26564

Published: Feb 26, 2021Updated: Jan 14, 2025 Sources: CVE List NVDCWE-319
NVD MITRE
8.3CVSSHIGH
EPSS Score
0.6%
Top 55.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-319

Affected Products

Synology DiskStation Manager (DSM)Synology
On-prem
Operating Systems / linux-distro
diskstation managersynology
On-premOS
Operating Systems / linux-distro
vs960hd firmwaresynology
EmbeddedFirmware
Hardware Firmware
skynas firmwaresynology
On-prem
Operating Systems / linux-distro
diskstation manager unified controllersynology
On-premOS
Operating Systems
synologycommercialUSOperating Systemsaka diskstation manager (dsm), router manager

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Credential Access
View detailed technique mapping

References

https://www.synology.com/security/advisory/Synology_SA_20_26
synology.com
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1160
talosintelligence.com

Timeline

Published
Feb 26, 2021
Last Updated
Jan 14, 2025

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