ICSA-25-148-01: Siemens SiPass
CISA advisory · released 2025-05-23
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2025-10-14 (final)
CISA's summary
Summary: SiPass integrated ACC (Advanced Central Controller) devices do not properly check the integrity of firmware updates. This could allow an attacker to upload a maliciously modified firmware onto the device. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SiPass integrated AC5102 (ACC-G2) | vers:all/* |
| Siemens | SiPass integrated ACC-AP | vers:all/* |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2022-31807 — CVE-2022-31807 · CWE-347
Affected devices do not properly check the integrity of firmware updates. This could allow a local attacker to upload a maliciously modified firmware onto the device. In a second scenario, a remote attacker who is able to intercept the transfer of a valid firmware from the server to the device could modify the firmware "on the fly".
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting 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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