CVE-2026-18188 A format string vulnerability was found in the Rsync Backup on the ADM
An authenticated attacker can exploit a format string vulnerability in ASUSTOR ADM's Rsync Backup to disclose memory information or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18188?
CVE-2026-18188 is a high-severity vulnerability in ASUSTOR Inc. ADM, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A format string vulnerability was found in the Rsync Backup on the ADM. The vulnerability occurs because user-controlled rsync backup configuration or log data may be processed through an unsafe format string operation. An authenticated attacker can exploit this issue to disclose memory information or cause denial of service of the affected backup component. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RUN1 as well as from ADM 5.0.0 through ADM 5.1.3.RI81.
Weakness: CWE-134
Which versions are affected by CVE-2026-18188?
It affects 1 product.
Products include Asustor Data Master.
How do I fix CVE-2026-18188?
No fix has been published for CVE-2026-18188 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-18188 being exploited?
There is no known exploitation of CVE-2026-18188 in the wild and no public exploit code.
Other vulnerabilities in ASUSTOR Inc. ADM
- CVE-2018-12313 Command injection in n/a
- CVE-2026-24936 An improper input validation vulnerability was found in ADM while joining a AD Domain.
- CVE-2026-6644 A command injection vulnerability was found in the PPTP VPN Clients on the ADM
- CVE-2026-3179 A path traversal vulnerability was found in the FTP Backup on the ADM.
- CVE-2026-24932 An improper certificate validation vulnerability was found in ADM while updating the DDNS settings.
Sources
Also known as GHSA-v869-q27w-qhm7.