CVE-2020-7591

Name: CVE-2020-7591
Creator: NVD / NIST
Published: 2020-10-15T19:15:13.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.46%

Last modified Jun 17, 2026

CVE-2020-7591 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.46%

70.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Siport Mp	< 3.2.1

References

https://cert-portal.siemens.com/productcert/pdf/ssa-384879.pdfVendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-287-06Third Party Advisory, US Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-384879.pdfVendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-287-06Third Party Advisory, US Government Resource

Timeline

Published: Oct 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7591?

How severe is CVE-2020-7591?

CVE-2020-7591 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.46% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7591?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-7591?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST