ICSA-21-315-09: Siemens Climatix POL909 (Update A)
CISA advisory · released 2021-11-11
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2022-03-10 (final)
CISA's summary
Risk evaluation: Successful exploitation of this vulnerability could allow sensitive data disclosure or modification of data in transit.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | Climatix POL909 (AWM module) | < 11.34 |
| Siemens | Climatix POL909 (AWB module) | < 11.34 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2021-40366 · CWE-311
The web server of affected devices transmits data without TLS encryption. This could allow an unauthenticated remote attacker in a man-in-the-middle position to read sensitive data, such as administrator credentials, or modify data in transit.CVE-2021-40366 has been assigned to this vulnerability. A CVSS v3 base score of 6.4 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L).
Acknowledgments, as the advisory lists them
- Chizuru Toyama, TXOne IoT/ICS Security Research Labs: reporting this vulnerability to CISA
- Siemens: reporting this vulnerability to CISA
The advisory's legal notice
All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.
Sources
DeSpy's copy of this version is dated 2026-09-28.
This product uses the NVD API but is not endorsed or certified by the NVD.
CVE records: Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
CISA's Known Exploited Vulnerabilities catalog and CISA Vulnrichment data are CC0 1.0. CISA advisories are shown with the TLP label their document carries. No endorsement by CISA, DHS, NIST or MITRE is stated or implied.