#VU115210 Arbitrary file upload in SS1 and SS1 Cloud - CVE-2025-53970

Vulnerability identifier: #VU115210

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-53970

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SS1
Server applications / Remote management servers, RDP, SSH
SS1 Cloud
Server applications / Database software

Vendor: DOS Co

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote attacker can upload a malicious file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SS1: - - 16.0.0.10

SS1 Cloud: - - 2.1.3

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External links
https://jvn.jp/en/jp/JVN99577552/
https://www.dos-osaka.co.jp/news/2025/08/250827.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.