CVSS 3.1
8.7 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:NCVE-2021-26564
High (8.7) in synology. EPSS 0.7% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
- CWE
- CWE-319
- Published
- Modified
- Record from
- the NVD, synced
Affected
- synology:diskstation_manager
- synology:diskstation_manager_unified_controller
- synology:skynas_firmware
- synology:vs960hd_firmware