CVE-2020-7587

Name: CVE-2020-7587
Creator: NVD / NIST
Published: 2020-07-14T14:15:18.93+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 2.48%

Last modified Jun 17, 2026

CVE-2020-7587 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. A vulnerability has been identified in Opcenter Execution Discrete (All versions < V3.2), Opcenter Execution Foundation (All versions < V3.2), Opcenter Execution Process (All versions < V3.2), Opcenter Intelligence (All versions < V3.3), Opcenter Quality (All versions < V11.3), Opcenter RD&L (V8.0), SIMATIC IT LMS (All versions < V2.6), SIMATIC IT Production Suite (All versions < V8.0), SIMATIC Notifier Server for Windows (All versions), SIMATIC PCS neo (All versions < V3.0 SP1), SIMATIC STEP 7 (TIA Portal) V15 (All versions < V15.1 Update 5), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 2), SIMOCODE ES V15.1 (All versions < V15.1 Update 4), SIMOCODE ES V16 (All versions < V16 Update 1), Soft Starter ES V15.1 (All versions < V15.1 Update 3), Soft Starter ES V16 (All versions < V16 Update 1). Sending multiple specially crafted packets to the affected service could cause a partial remote denial-of-service, that would cause the service to restart itself. EPSS estimates a 2.48% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in Opcenter Execution Discrete (All versions < V3.2), Opcenter Execution Foundation (All versions < V3.2), Opcenter Execution Process (All versions < V3.2), Opcenter Intelligence (All versions < V3.3), Opcenter Quality (All versions < V11.3), Opcenter RD&L (V8.0), SIMATIC IT LMS (All versions < V2.6), SIMATIC IT Production Suite (All versions < V8.0), SIMATIC Notifier Server for Windows (All versions), SIMATIC PCS neo (All versions < V3.0 SP1), SIMATIC STEP 7 (TIA Portal) V15 (All versions < V15.1 Update 5), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 2), SIMOCODE ES V15.1 (All versions < V15.1 Update 4), SIMOCODE ES V16 (All versions < V16 Update 1), Soft Starter ES V15.1 (All versions < V15.1 Update 3), Soft Starter ES V16 (All versions < V16 Update 1). Sending multiple specially crafted packets to the affected service could cause a partial remote denial-of-service, that would cause the service to restart itself. On some cases the vulnerability could leak random information from the remote service.

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

2.48%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Opcenter Execution Discrete	< 3.2
Siemens	Opcenter Execution Foundation	< 3.2
Siemens	Opcenter Execution Process	< 3.2
Siemens	Opcenter Intelligence	< 3.3
Siemens	Opcenter Quality	< 11.3
Siemens	Opcenter Rd\&L	8.0
Siemens	Simatic It Lms	< 2.6
Siemens	Simatic It Production Suite	< 8.0
Siemens	Simatic Notifier Server	All versions
Siemens	Simatic Pcs Neo	< 3.0
Siemens	Simatic Pcs Neo	3.0
Siemens	Simatic Step 7	>= 15, < 15.1
Siemens	Simatic Step 7	15.1
Siemens	Simatic Step 7	16
Siemens	Simocode Es	< 15.1
Siemens	Simocode Es	15.1
Siemens	Simocode Es	16
Siemens	Soft Starter Es	< 15.1
Siemens	Soft Starter Es	15.1

References

https://cert-portal.siemens.com/productcert/pdf/ssa-841348.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-841348.pdfVendor Advisory

Timeline

Published: Jul 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7587?

How severe is CVE-2020-7587?

CVE-2020-7587 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 2.48% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7587?

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-2020-7587?

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

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Source: NVD / NIST