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ICSA-25-254-05: Siemens Apogee PXC and Talon TC Devices ↗ source

September 11, 2025 CISA ICS Advisory

Summary

Apogee PXC and Talon TC contain a vulnerability that could allow an attacker to download the device encrypted database file. Siemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available. CVE-2025-40757: Affected devices connected to the network allow unrestricted access to sensitive files, such as databases. This could allow an attacker to download encrypted .db file containing passwords.

Advisory Details CISA ICS CSAF feed

Advisory ID
ICSA-25-254-05
Status
Final · version 1
Initial release
2025-09-09
Last revised
2025-09-09
Vendor
Siemens
Critical infrastructure sectors
Critical Manufacturing
Deployed
Worldwide
Vendor headquarters
Germany

Republished vendor advisory. This ICSA is a verbatim republication of Siemens ProductCERT SSA-916339 from a direct conversion of the 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 a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

Credit: Siemens ProductCERT; Johnathan Law (PwC)

Affected products (3)
  • APOGEE PXC Series (BACnet) — all versions
  • APOGEE PXC Series (P2 Ethernet) — all versions
  • TALON TC Series (BACnet) — all versions

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

Vulnerabilities as Stated by the Advisory

CVEWeaknessCVSS v3Details
CVE-2025-40757 CWE-200 Exposure of Sensitive Information to an Unauthorized Actor 5.3 Medium CVE-2025-40757
Affected devices connected to the network allow unrestricted access to sensitive files, such as databases. This could allow an attacker to download encrypted .db file containing passwords.

Mitigation: Ensure all three default passwords are changed even if not in use.

Mitigation: Ensure that passwords for all accounts are strong and hard to guess. Passwords can be 15 characters long and can contain upper case, lower case, numbers and special characters.

Mitigation: Disable telnet (telnet is disabled by default).

Affected, fixed & timeline

Affected:

  • APOGEE PXC Series (BACnet) all versions
  • APOGEE PXC Series (P2 Ethernet) all versions
  • TALON TC Series (BACnet) all versions

No fix available: Currently no fix is available

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-2025-40757 5.3 Medium Siemens APOGEE PXC Series (BACnet) A vulnerability has been identified in APOGEE PXC Series (BACnet) (All versions), APOGEE PXC Series (P2 Ethernet) (All versions), TALON TC Series (BA…

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.