As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens’ ProductCERT Security Advisories (CERT Services | Services | Siemens Global).
1. EXECUTIVE SUMMARY
- CVSS v4 9.3
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIVaaS
- Vulnerability: Incorrect Permission Assignment for Critical Resource
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to access or alter sensitive data without proper authorization.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
Siemens reports that the following products are affected:
- SIMATIC Virtualization as a Service (SIVaaS): All versions
3.2 VULNERABILITY OVERVIEW
3.2.1 INCORRECT PERMISSION ASSIGNMENT FOR CRITICAL RESOURCE CWE-732
The affected application exposes a network share without any authentication. This could allow an attacker to access or alter sensitive data without proper authorization.
CVE-2025-40804 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.1 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
A CVSS v4 score has also been calculated for CVE-2025-40804. A base score of 9.3 has been calculated; the CVSS vector string is (This article has been indexed from All CISA Advisories