ASUSTOR ADM up to 4.3.3.RUN1/5.1.3.RI81 VPN Clients path traversal

Summaryinfo

A vulnerability was found in ASUSTOR ADM up to 4.3.3.RUN1/5.1.3.RI81. It has been rated as very critical. This affects an unknown function of the component VPN Clients. Performing a manipulation results in path traversal. This vulnerability is reported as CVE-2026-67245. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, was found in ASUSTOR ADM up to 4.3.3.RUN1/5.1.3.RI81. This affects an unknown function of the component VPN Clients. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A path traversal vulnerability was found in the VPN Clients on the ADM. The vulnerability occurs because user-controlled certificate name input is not sufficiently validated before being used to construct the upload destination path. An authenticated attacker can exploit this issue to write an uploaded certificate file outside the intended VPN certificate directory, subject to process privileges and filesystem permissions. 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.

It is possible to read the advisory at asustor.com. This vulnerability is uniquely identified as CVE-2026-67245 since 07/29/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/30/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• ASUSTOR

Name

• ADM

Version

• 4.3.3.RUN1
• 5.1.3.RI81

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CPE 2.2info

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