CVE-2026-18186 Details
Description
A stored format string vulnerability was found in the FTP Backup on the ADM. The vulnerability occurs because user-controlled backup configuration data may be written into a task log and later 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.
A stored format string vulnerability has been identified in the FTP Backup feature of Asustor's ADM operating system. This vulnerability arises because user-controlled backup configuration data can be written into a task log and subsequently processed through an unsafe format string operation. An authenticated attacker could exploit this vulnerability to disclose memory information or cause a denial-of-service condition in the affected CGI process. The vulnerability affects Asustor ADM versions 4.1.0 through 4.3.3.RUN1, as well as versions 5.0.0 through 5.1.3.RI81.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 30, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.asustor.com/security/security_advisory_detail?id=67 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-134 | Use of Externally-Controlled Format String | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| asustor data master | >= 4.1.0.rhu2, <= 4.3.3.run1 >= 5.0.0.ra82, < 5.1.4.rjv2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | Initial Analysis | [email protected] |
| Aug 4, 2026 | CVE Modified | [email protected] |
| Jul 30, 2026 | CVE Modified | CISA-ADP |
| Jul 30, 2026 | New CVE Received | [email protected] |