What’s Vulnerable › Vulnerabilities

CVE-2025-40804

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-09 · updated 2026-06-17
• Weakness: CWE-732

Description

A vulnerability has been identified in SIMATIC Virtualization as a Service (SIVaaS) (All versions). The affected application exposes a network share without any authentication. This could allow an attacker to access or alter sensitive data without proper authorization.

Affected products

• Siemens SIMATIC Virtualization as a Service (SIVaaS): all versions

References

• https://cert-portal.siemens.com/productcert/html/ssa-534283.html

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