CVE-2026-67248
A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM
Description
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.
INFO
Published Date :
July 30, 2026, 5:16 a.m.
Last Modified :
Aug. 4, 2026, 2:05 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | f35eaae9-79f2-4d0d-a5c7-7bea6ed6be77 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update ADM to a version that includes the fix.
- Apply vendor-supplied patches for the File Explorer.
- Validate user input before copying to buffers.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-67248.
| URL | Resource |
|---|---|
| https://www.asustor.com/security/security_advisory_detail?id=69 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-67248 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-67248
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-67248 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-67248 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 04, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:* versions from (including) 4.1.0.rhu2 up to (including) 4.3.3.run1 *cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:* versions from (including) 5.0.0.ra82 up to (excluding) 5.1.4.rjv2 Added Reference Type ASUSTOR, Inc.: https://www.asustor.com/security/security_advisory_detail?id=69 Types: Vendor Advisory -
CVE Modified by [email protected]
Aug. 04, 2026
Action Type Old Value New Value Changed Affected [{'vendor': 'ASUSTOR Inc.', 'product': 'ADM', 'versions': [{'status': 'affected', 'version': '5.0.0', 'versionType': 'custom', 'lessThanOrEqual': '5.1.3.RI81'}, {'status': 'affected', 'version': '4.1.0', 'versionType': 'custom', 'lessThanOrEqual': '4.3.3.RUN1'}], 'packageName': 'File Explorer', 'defaultStatus': 'unaffected'}] [{'vendor': 'ASUSTOR Inc.', 'product': 'ADM', 'versions': [{'status': 'affected', 'version': '5.0.0', 'versionType': 'custom', 'lessThanOrEqual': '5.1.3.RI81'}, {'status': 'affected', 'version': '4.1.0', 'versionType': 'custom', 'lessThanOrEqual': '4.3.3.RUN1'}], 'platforms': ['Linux', 'x86', 'ARM', '64 bit'], 'packageName': 'File Explorer', 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 30, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-67248', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-30T13:24:14.469781Z'} -
New CVE Received by [email protected]
Jul. 30, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'ASUSTOR Inc.', 'product': 'ADM', 'versions': [{'status': 'affected', 'version': '5.0.0', 'versionType': 'custom', 'lessThanOrEqual': '5.1.3.RI81'}, {'status': 'affected', 'version': '4.1.0', 'versionType': 'custom', 'lessThanOrEqual': '4.3.3.RUN1'}], 'packageName': 'File Explorer', 'defaultStatus': 'unaffected'}] Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-121 Added Reference https://www.asustor.com/security/security_advisory_detail?id=69