Vulnerability · Published Jul 30, 2026 · Assigned by ASUSTOR1

CVE-2026-18187A format string vulnerability was found in the Internal Backup on the ADM

High 7.1

In plain English

A high-severity security flaw in ADM from ASUSTOR Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.5%top 59.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A format string vulnerability was found in the Internal Backup on the ADM. The vulnerability occurs because user-controlled task input may be included in an error response and 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 CGI process. 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.

Affected products (as reported)

Vendor	Product	Versions
ASUSTOR Inc.	ADM	5.0.0 – through 5.1.3.RI814.1.0 – through 4.3.3.RUN1

Weakness: CWE-134 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

References

https://www.asustor.com/security/security_advisory_detail?id=67 vendor-advisory