How severe is CVE-2019-15850?

CVE-2019-15850 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-15850 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15850?

CVE-2019-15850 affects Eq-3 Homematic Ccu3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15850?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-15850 published?

CVE-2019-15850 was published on 2019-10-17 and last updated on 2026-06-17.

CVE-2019-15850

CVE-2019-15850 is a high-severity vulnerability in Eq-3 Homematic Ccu3 Firmware with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Eq-3 Homematic Ccu3 Firmware
Published: 2019-10-17
Last modified: 2026-06-17

Description

eQ-3 HomeMatic CCU3 firmware version 3.41.11 allows Remote Code Execution in the ReGa.runScript method. An authenticated attacker can easily execute code and compromise the system.

Frequently asked questions

What is CVE-2019-15850?: eQ-3 HomeMatic CCU3 firmware version 3.41.11 allows Remote Code Execution in the ReGa.runScript method. An authenticated attacker can easily execute code and compromise the system.
How severe is CVE-2019-15850?: CVE-2019-15850 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-15850 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15850?: CVE-2019-15850 affects Eq-3 Homematic Ccu3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15850?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-15850 published?: CVE-2019-15850 was published on 2019-10-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:eq-3:homematic_ccu3_firmware:3.41.11:*:*:*:*:*:*:*

More vulnerabilities in Eq-3 Homematic Ccu3 Firmware

CVE-2021-33032 — Critical (CVSS 10.0): A Remote Code Execution (RCE) vulnerability in the WebUI component of the eQ-3 HomeMatic CCU2 firmware up to and…
CVE-2019-18939 — Critical (CVSS 9.8): 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…
CVE-2019-18938 — Critical (CVSS 9.8): eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the E-Mail AddOn through 1.6.8.c installed allow Remote Code…
CVE-2019-18937 — Critical (CVSS 9.8): eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the Script Parser AddOn through 1.8 installed allow Remote Code…
CVE-2019-16199 — Critical (CVSS 9.8): eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers…
CVE-2019-9585 — Critical (CVSS 9.8): eQ-3 Homematic CCU2 prior to 2.47.10 and CCU3 prior to 3.47.10 JSON API has Improper Access Control for…

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