CVE-2019-18939

9.8 criticalEPSS 41%

Critical (9.8). EPSS 41% chance of exploitation in the next 30 days.

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the HM-Print AddOn through 1.2a installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the exec.cgi and exec1.cgi scripts, which execute TCL script content from an HTTP POST request.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 41% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2019-11-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

eq-3:homematic_ccu2_firmware
eq-3:homematic_ccu3_firmware
hm-print_project:hm-print

References

https://psytester.github.io/CVE-2019-18939/
https://psytester.github.io/CVE-2019-18939/

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