What is CVE-2021-26563?

CVE-2021-26563 is a high-severity vulnerability in Synology Diskstation_manager, classified under Incorrect Authorization. CVSS score: 8.2/10. Published 2021-02-26.

How severe is CVE-2021-26563?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Synology Diskstation_manager

CVE-2021-26563

Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors.

Vulnerability class: Broken Access Control

EPSS: 0.005 (40.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Synology Diskstation_manager
Synology Diskstation Manager (Dsm) — versions unspecified
Synology Diskstation_manager_unified_controller — versions 3.0
Synology Skynas
Synology Skynas_firmware
Synology Uc3200
Synology Vs960hd
Synology Vs960hd_firmware

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security@synology.com (Exploit, Third Party Advisory, x_refsource_MISC)
security@synology.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-26563?: CVE-2021-26563 is a high-severity vulnerability in Synology Diskstation_manager, classified under Incorrect Authorization. CVSS score: 8.2/10. Published 2021-02-26.
How severe is CVE-2021-26563?: High severity. CVSS v3 base score is 8.2 out of 10.