CVE-2025-8611 — CRITICAL (9.8)

Vulnerability Description

AOMEI Cyber Backup Missing Authentication for Critical Function Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of AOMEI Cyber Backup. Authentication is not required to exploit this vulnerability. The specific flaw exists within the DaoService service, which listens on TCP port 9074 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-26158.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Aomeitech	Cyber Backup	3.7.0

Related Weaknesses (CWE)

CWE-306

References

https://www.zerodayinitiative.com/advisories/ZDI-25-807/Third Party Advisory

FAQ

What is CVE-2025-8611?

CVE-2025-8611 is a vulnerability with a CVSS score of 9.8 (CRITICAL). AOMEI Cyber Backup Missing Authentication for Critical Function Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of A...

How severe is CVE-2025-8611?

CVE-2025-8611 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-8611?

Check the references section above for vendor advisories and patch information. Affected products include: Aomeitech Cyber Backup.