CVE-2026-67248 ASUSTOR Inc. CVE debrief

Who should care

Defenders responsible for systems with File Explorer functionality, especially those using ADM, should assess potential exposure and impact. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify exposure and assess potential impact on systems with File Explorer functionality.

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact, especially for systems with File Explorer functionality, as an authenticated attacker can exploit this issue to cause denial of service.

• Denial of service of the affected CGI process
• Potential disruption to system functionality
• Need for verification of system exposure and potential impact

Technical summary

The vulnerability occurs because user-controlled input is not properly validated before being decoded and copied into a fixed-size stack buffer. An authenticated attacker can exploit this issue to cause denial of service of the affected CGI process. The issue affects systems running ADM 4.1.0 through ADM 4.3.3.RUN1 and ADM 5.0.0 through ADM 5.1.3.RI81. The vulnerability has a CVSS score of 8.7 and is classified as HIGH severity. Defenders should prioritize verifying exposure and assessing potential impact, especially for systems with File Explorer functionality.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact, especially for systems with File Explorer functionality.

Recommended defensive actions

• Verify exposure by checking system configurations and File Explorer functionality
• Assess potential impact on systems with File Explorer functionality
• Monitor system logs for potential exploitation attempts
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability, including its description, CVSS score, and affected products. The CVE record was published on 2026-07-30T05:16:39.157Z and has not been modified since then. The vulnerability has a CVSS score of 8.7 and is classified as HIGH severity. The affected products and versions include ADM 4.1.0 through ADM 4.3.3.RUN1 and ADM 5.0.0 through ADM 5.1.3.RI81.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.