CVE-2019-18939 is a critical remote code execution vulnerability affecting eQ-3 Homematic CCU2 (2.47.20) and CCU3 (3.47.18) devices with the HM-Print AddOn (through 1.2a) installed. Unauthenticated attackers can exploit this by sending crafted HTTP POST requests containing TCL script content to the exec.cgi and exec1.cgi scripts on the web interface. With a CVSS score of 9.8, this vulnerability presents a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. Despite its critical severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.2aCPE matchmatch criteria | cpe:2.3:a:hm-print_project:hm-print:1.2a:*:*:*:*:*:*:* | ||
2.47.20CPE matchmatch criteria | cpe:2.3:o:eq-3:homematic_ccu2_firmware:2.47.20:*:*:*:*:*:*:* | ||
1.2CPE matchmatch criteria | cpe:2.3:a:hm-print_project:hm-print:1.2:*:*:*:*:*:*:* | ||
3.47.18CPE matchmatch criteria | cpe:2.3:o:eq-3:homematic_ccu3_firmware:3.47.18:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.