// For flags

CVE-2025-8611

AOMEI Cyber Backup Missing Authentication for Critical Function Remote Code Execution Vulnerability

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

Vulnerabilidad de ejecución remota de código en funciones críticas por falta de autenticación en AOMEI Cyber Backup. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de AOMEI Cyber Backup. No se requiere autenticación para explotar esta vulnerabilidad. La falla específica se encuentra en el servicio DaoService, que escucha en el puerto TCP 9074 por defecto. El problema se debe a la falta de autenticación antes de permitir el acceso a la funcionalidad. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de SYSTEM. Era ZDI-CAN-26158.

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.

*Credits: Gu YongZeng (@0x0dee)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-08-05 CVE Reserved
  • 2025-08-06 CVE Published
  • 2025-08-22 CVE Updated
  • 2026-04-25 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-306: Missing Authentication for Critical Function
CAPEC
References (1)
URL Tag Source
https://www.zerodayinitiative.com/advisories/ZDI-25-807 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Aomeitech
Search vendor "Aomeitech"
 Cyber Backup
Search vendor "Aomeitech" for product "Cyber Backup"
 3.7.0
Search vendor "Aomeitech" for product "Cyber Backup" and version "3.7.0"
-
Affected