CVEvulnerability
CVE-2021-33032
10.0 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-07-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-78
Description
A Remote Code Execution (RCE) vulnerability in the WebUI component of the eQ-3 HomeMatic CCU2 firmware up to and including version 2.57.5 and CCU3 firmware up to and including version 3.57.5 allows remote unauthenticated attackers to execute system commands as root via a simple HTTP request.
Affected configurations
• eq-3 homematic ccu2 firmware (<= 2.57.5)
• eq-3 homematic ccu3 firmware (<= 3.57.5)
Related
Weakness · CWE (1)
- CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
References
- https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ Exploit, Third Party Advisory
- https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HM-CCU2-Changelog.2.59.7.pdf Release Notes, Vendor Advisory
- https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf Release Notes, Vendor Advisory
- https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ Exploit, Third Party Advisory
- https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HM-CCU2-Changelog.2.59.7.pdf Release Notes, Vendor Advisory
- https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf Release Notes, Vendor Advisory