What is the CVSS score of CVE-2025-1021?

CVE-2025-1021 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.3%.

Which versions of Diskstation Manager are affected by CVE-2025-1021?

CVE-2025-1021 presents notable security risk, a missing authorization vulnerability rated CVSS 7.5.

How to fix or mitigate CVE-2025-1021?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Diskstation Manager CVE-2025-1021

HIGH

Missing Authorization (CWE-862)

2025-04-23 security@synology.com

Authentication Bypass Synology Diskstation Manager

7.5

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:38 vuln.today

CVE Published

Apr 23, 2025 - 03:15 nvd

HIGH 7.5

DescriptionNVD

AnalysisAI

Missing authorization vulnerability in synocopy in Synology DiskStation Manager (DSM) before 7.1.1-42962-8, 7.2.1-69057-7 and 7.2.2-72806-3 allows remote attackers to read arbitrary files via. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. Missing authorization vulnerability in synocopy in Synology DiskStation Manager (DSM) before 7.1.1-42962-8, 7.2.1-69057-7 and 7.2.2-72806-3 allows remote attackers to read arbitrary files via unspecified vectors. Affected products include: Synology Diskstation Manager. Version information: before 7.1.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.

More from same product – last 7 days

CVE-2025-12686 CRITICAL Act Now

9.8 May 27

Remote code execution in Synology BeeStation OS versions before 1.3.2-65648 stems from a classic buffer overflow in the

CVE-2025-13392 HIGH This Week

8.1 May 27

Authentication bypass in Synology DiskStation Manager (DSM) SSO lets remote, unauthenticated attackers who already know

CVE-2025-14713 HIGH This Week

7.5 May 27

Credential disclosure in Synology C2 Identity Edge Server (DSM versions before 1.76.0-0307) allows remote unauthenticate

CVE-2026-2237 MEDIUM This Month

6.2 May 27

Volume encryption in Synology Storage Manager before version 1.0.1-1100 transmits sensitive data via HTTP GET query stri

CVE-2025-13593 MEDIUM This Month

6.1 May 27

Arbitrary file write with restricted content in Synology ActiveProtect Agent before 1.1.0-0439 is exploitable by local u

CVE-2025-1021 vulnerability details – vuln.today

Back

Diskstation Manager CVE-2025-1021

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

More from same product – last 7 days

Share

External POC / Exploit Code