CVE-2025-8611 AOMEI Cyber Backup Missing Authentication for Critical Function Remote Code Execution Vulnerability
Remote attackers can execute arbitrary code with SYSTEM privileges on AOMEI Cyber Backup installations due to missing authentication on a critical service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-8611?
CVE-2025-8611 is a critical missing authorization vulnerability in AOMEI Cyber Backup, published on 20 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2025-8611?
It affects 1 product.
Products include Aomeitech Cyber Backup.
How do I fix CVE-2025-8611?
No fix has been published for CVE-2025-8611 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-8611 being exploited?
There is no known exploitation of CVE-2025-8611 in the wild and no public exploit code.
Sources
Also known as GHSA-r944-m35h-4q37.