CVE-2026-18187: CWE-134 Use of Externally-Controlled format string in ASUSTOR Inc. ADM
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.
AI Analysis
Technical Summary
This vulnerability (CWE-134) in ASUSTOR ADM's Internal Backup component involves an externally-controlled format string issue. User-supplied input is incorporated unsafely into error messages processed by format string operations, enabling an authenticated attacker to leak memory contents or disrupt the CGI process via denial of service. Affected versions include ADM 4.1.0 through 4.3.3.RUN1 and 5.0.0 through 5.1.3.RI81. The CVSS 4.0 base score is 7.1, indicating high severity. No vendor advisory or patch information is currently provided.
Potential Impact
Successful exploitation can lead to disclosure of memory information, potentially aiding further attacks, or cause denial of service of the affected CGI process, impacting availability. The attacker must be authenticated to exploit this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict authenticated user access to the affected ADM Internal Backup functionality to trusted users only.
CVE-2026-18187: CWE-134 Use of Externally-Controlled format string in ASUSTOR Inc. ADM
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.
CVSS v4.0
Score 7.1high
Affected software
ASUSTOR Inc.
ADM
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-134) in ASUSTOR ADM's Internal Backup component involves an externally-controlled format string issue. User-supplied input is incorporated unsafely into error messages processed by format string operations, enabling an authenticated attacker to leak memory contents or disrupt the CGI process via denial of service. Affected versions include ADM 4.1.0 through 4.3.3.RUN1 and 5.0.0 through 5.1.3.RI81. The CVSS 4.0 base score is 7.1, indicating high severity. No vendor advisory or patch information is currently provided.
Potential Impact
Successful exploitation can lead to disclosure of memory information, potentially aiding further attacks, or cause denial of service of the affected CGI process, impacting availability. The attacker must be authenticated to exploit this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict authenticated user access to the affected ADM Internal Backup functionality to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ASUSTOR1
- Date Reserved
- 2026-07-29T01:38:52.259Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a6ac37f9c2644c7f872b18b
Added to database: 07/30/2026, 03:22:39 UTC
Last enriched: 08/06/2026, 13:58:52 UTC
Last updated: 09/14/2026, 10:01:29 UTC
Views: 44
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