Vulnerability · Published Jul 22, 2021 · Assigned by mitre

CVE-2021-33032

Critical 10.0

In plain English

A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 52.2% (higher than 99% of all known vulnerabilities).

Severity (CVSS NVD)10.0Critical

Exploit odds (30 days)52.2%top 1.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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 products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://novag.github.io/posts/homematic-unauthenticated-remote-code-execution/ x_refsource_MISC
https://www.eq-3.de/downloads/software/HM-CCU2-Firmware_Updates/HM-CCU-2.59.7/HM-CCU2-Changelog.2.59.7.pdf x_refsource_MISC
https://www.eq-3.de/downloads/software/firmware/ccu3-firmware/CCU3-Changelog.3.59.6.pdf x_refsource_MISC