What’s Vulnerable › Vulnerabilities

CVE-2020-7591

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-10-15 · updated 2026-06-17
• Weakness: CWE-603

Description

A vulnerability has been identified in SIPORT MP (All versions < 3.2.1). Vulnerable versions of the device could allow an authenticated attacker to impersonate other users of the system and perform (potentially administrative) actions on behalf of those users if the single sign-on feature ("Allow logon without password") is enabled.

Affected products

• Siemens AG SIPORT MP: before 3.2.1 — fixed in 3.2.1

How to fix

Upgrade to a fixed version: Siemens AG SIPORT MP 3.2.1. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-384879.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-20-287-06
• https://cert-portal.siemens.com/productcert/pdf/ssa-384879.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-20-287-06

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