Cleartext transmission of sensitive information in Siemens Climatix POL909
Priority LOW 33CWE-311Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-311.
Summary
A vulnerability has been identified in Climatix POL909 (AWB module) (All versions < V11.42), Climatix POL909 (AWM module) (All versions < V11.34). 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.
Why it matters now
EPSS 0.00421 36th percentileScored 2026-11-07
Fix Fixed Climatix POL909 (AWB module) (Siemens): V11.42Climatix POL909 (AWM module) (Siemens): V11.34
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | Climatix POL909 (AWB module) | before V11.42 | V11.42 | Patch available | CNA |
| Siemens | Climatix POL909 (AWM module) | before V11.34 | V11.34 | Patch available | CNA |
- Climatix POL909 (AWB module) VendorSiemens Affected before V11.42 Fixed in V11.42 Patch available CNA
- Climatix POL909 (AWM module) VendorSiemens Affected before V11.34 Fixed in V11.34 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:climatix_pol909_firmware:*:*:*:*:advanced_web_module:*:*:* | before 11.34 | Vulnerable | Siemens |
| cpe:2.3:o:siemens:climatix_pol909_firmware:*:*:*:*:advanced_web_and_bacnet_module:*:*:* | before 11.42 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:climatix_pol909:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:climatix_pol909_firmware:*:*:*:*:advanced_web_module:*:*:* Versions before 11.34 Vulnerable ·Siemens
- cpe:2.3:o:siemens:climatix_pol909_firmware:*:*:*:*:advanced_web_and_bacnet_module:*:*:* Versions before 11.42 Vulnerable ·Siemens
- cpe:2.3:h:siemens:climatix_pol909:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
- Fix · CNA Climatix POL909 (AWB module) (Siemens) Fixed in V11.42
- Fix · CNA Climatix POL909 (AWM module) (Siemens) Fixed in V11.34
Timeline
- 2026-10-02 Threatist record created from CVE-2021-40366
- 2026-10-03 Alias added: GHSA-49hc-75c3-5637
References
More Siemens Climatix Pol909 Firmware vulnerabilities
- TI-2021-18282 Improper access control in Siemens Climatix POL909 CVSS 3.1MEDIUM 6.5
- TI-2021-18281 Cross-site scripting in Siemens Climatix POL909 CVSS 3.1MEDIUM 6.1
- TI-2021-18280 Cross-site scripting in Siemens Climatix POL909 CVSS 3.1MEDIUM 6.1
- TI-2020-06098 Cross-site scripting in Siemens Climatix POL908 CVSS 3.1MEDIUM 6.1
- TI-2020-06097 Cross-site scripting in Siemens Climatix POL908 CVSS 3.1MEDIUM 6.1
Sources
- CVE-2021-40366 · CVE Program
- CVE-2021-40366 · NVD
- FIRST EPSS
- GHSA-49hc-75c3-5637 · GitHub Advisory Database · CC BY 4.0
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