AS-2026-020: ADM File Explorer

2026-08-03

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Statement

A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM.

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.

• The issues have been fixed on ADM 5.1.4.RJV2.

Affected Products

Product	Severity	Fixed Release Availability
ADM 5.0 and 5.1	Important	Upgrade to ADM 5.1.4.RJV2 or above.
ADM 4.3, 4.2 and 4.1	Important	Ongoing

Detail

• CVE-2026-67248
  • Severity: High
  • CVSS4 Base Score: 8.7
  • CVSS4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM. 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. Further impact may be possible depending on exploitability and runtime protections. 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.

Reference

• CVE-2026-67248

Acknowledgement

Jincheng Wang (@winmt) from Nanjing University of Posts and Telecommunications

Revision

Revision	Date	Description
1	2026-07-29	Initial public release.
2	2026-07-30	CVE ID (CVE-2026-67248) are assigned for the issue.
3	2026-08-03	ADM 5.1.4.RJV2 have been released for fixing the issues.