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ICSA-25-182-01: FESTO Didactic CP, MPS 200, and MPS 400 Firmware ↗ source

July 1, 2025 CISA ICS Advisory

Summary

Siemens SIMATIC S7-1200 and S7-1500 CPUs contained in various Festo Didactic products contain a memory protection bypass vulnerability that could allow an attacker to write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks CVE-2020-15782: SIMATIC S7-1200 and S7-1500 CPU products contain a memory protection bypass vulnerability that could allow an attacker to write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks. Siemens has released updates for several affected products and strongly recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

Advisory Details CISA ICS CSAF feed

Advisory ID
ICSA-25-182-01
Status
Final · version 1.0.0
Initial release
2024-09-09
Last revised
2024-09-09
Vendor
FESTO Didactic
Critical infrastructure sectors
Critical manufacturing
Deployed
Worldwide
Vendor headquarters
Germany

Republished vendor advisory. This ICSA is a verbatim republication of Festo SE & Co. KG FSA-202405 from a direct conversion of their vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA…

General recommendations: As part of a security strategy, Festo recommends the following general defense measures to reduce the risk of exploits: - Use controllers and devices only in a protected environment to minimize network exposure and ensure that they are not accessible from outside. - Use firewalls to protect and separate the control system network from other networks. - Use VPN (Virtual Private Networks) tunnels if remote access is required. - Activate and apply user management and password features. - Use encrypted communication links. - Limit the access to both development and control system by physical means, operating system features, etc. - Protect both development and control systems by using up-to-date virus detection solutions. Festo strongly recommends minimizing and protecting network access to connected devices with state-of-the-art techniques and processes. To ensure secure operation follow the recommendations in the product manuals.

Credit: CERT@VDE

Affected products (4)
  • CP including S7 PLC
  • MPS 200 Systems
  • MPS 400 Systems
  • Firmware Siemens Simatic S7-1500 / ET200SP — <V2.9.2, V2.9.2

From CISA's machine-readable CSAF 2.0 advisory (JSON).

Vulnerabilities as Stated by the Advisory

CVEWeaknessCVSS v3Details
CVE-2020-15782 CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer 9.8 Critical CVE-2020-15782
SIMATIC S7-1200 and S7-1500 CPU products contain a memory protection bypass vulnerability that could allow an attacker to write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks. Siemens has released updates for several affected products and strongly recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

Vendor fix: Update Siemens Simatic S7-1500 / ET200SP Firmware to V2.9.2 or higher ↗

Affected, fixed & timeline

Affected:

  • CSAFPID-0006
  • CSAFPID-0007
  • CSAFPID-0008

Fixed in:

  • CSAFPID-0009
  • CSAFPID-0010
  • CSAFPID-0011

Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.

News Coverage

No coverage found in monitored research blogs or news feeds.

CVEs Referenced in This Publication

CVECVSSAffected
CVE-2020-15782 9.8 Critical Siemens SIMATIC Drive Controller family A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl.…

Named by the advisory itself. Each CVE links to its tracked detail page.

Vendors Named in This Publication

Each vendor links to its Known Exploited Vulnerabilities catalog page. Only vendors that appear in the KEV catalog are listed, either because the publication cites one of their KEV entries or because it names them directly.