SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-18937

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the Script Parser AddOn through 1.8 installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the exec.cgi script, which executes TCL script content from an…

CRITICAL 9.8EPSS 33.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 33.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the Script Parser AddOn through 1.8 installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the exec.cgi script, which executes TCL script content from an HTTP POST request.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
33.84% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-306
Affected
scriptparser project/scriptparser · eq-3/homematic ccu2 firmware · eq-3/homematic ccu3 firmware
Source
cve@mitre.org
EPSS trend
0%18%35%26 October 2026: 33.84%26 October 202626 October 2026

EPSS 33.8% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.