ICSA-25-345-09: Siemens Gridscale X Prepay
CISA advisory · released 2025-12-09
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 1, 2025-12-09 (final)
CISA's summary
Summary: Gridscale X Prepay contains multiple vulnerabilities that could allow an attacker to enumerate valid user names and to bypass locked-out user sessions. Siemens has released a new version for Gridscale X Prepay and recommends to update to the latest version.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | Gridscale X Prepay | vers:intdot/<4.2.1 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2025-40806 — CVE-2025-40806 · CWE-204
The affected application is vulnerable to user enumeration due to distinguishable responses. This could allow an unauthenticated remote attacker to determine if a user is valid or not, enabling a brute force attack with valid users.
- CVE-2025-40807 — CVE-2025-40807 · CWE-294
The affected application is vulnerable to capture-replay of authentication tokens. This could allow an authenticated but already locked-out user to establish still valid user sessions.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting these vulnerabilities to CISA.
- Kira, The Raven Security: reported these vulnerabilities to Siemens ProductCERT
The advisory's legal notice
The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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