How severe is CVE-2020-7591?

CVE-2020-7591 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-7591 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7591?

CVE-2020-7591 affects Siemens Siport Mp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7591?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-7591 published?

CVE-2020-7591 was published on 2020-10-15 and last updated on 2026-06-17.

CVE-2020-7591

CVE-2020-7591 is a high-severity vulnerability in Siemens Siport Mp with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-603.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 8.5
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-603
Affected product: Siemens Siport Mp
Published: 2020-10-15
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-7591?: 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.
How severe is CVE-2020-7591?: CVE-2020-7591 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-7591 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7591?: CVE-2020-7591 affects Siemens Siport Mp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7591?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-7591 published?: CVE-2020-7591 was published on 2020-10-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:siemens:siport_mp:*:*:*:*:*:*:*:*

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