ICSA-26-111-03: Siemens SINEC NMS
CISA advisory · released 2026-04-14
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2026-04-21 (final)
CISA's summary
Summary: Siemens SINEC NMS when used with User Management Component (UMC) contains an authentication bypass vulnerability due to insufficient validation of user identity. This could allow an unauthenticated remote attacker to bypass authentication and gain unauthorized access to the application. Siemens has released a new version for SINEC NMS and recommends to update to the latest version.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SINEC NMS | <V4.0_SP3_with_UMC |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2026-24032 — CVE-2026-24032 · CWE-347
The affected application contains an authentication weakness due to insufficient validation of user identity in the UMC component. This could allow an unauthenticated remote attacker to bypass authentication and gain unauthorized access to the application. (ZDI-CAN-27564)
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reported this vulnerability to CISA.
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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