What’s Vulnerable › Vulnerabilities

CVE-2019-9583

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-08-14 · updated 2026-06-17
• Weakness: CWE-400

Description

eQ-3 Homematic CCU2 and CCU3 obtain session IDs without login. This allows a Denial of Service and is a starting point for other attacks. Affected versions for CCU2: 2.35.16, 2.41.5, 2.41.8, 2.41.9, 2.45.6, 2.45.7, 2.47.10, 2.47.12, 2.47.15. Affected versions for CCU3: 3.41.11, 3.43.16, 3.45.5, 3.45.7, 3.47.10, 3.47.15.

Affected products

• Eq-3 Homematic Ccu2 Firmware: 2.35.16, 2.41.5, 2.41.8, 2.41.9, 2.45.6, 2.45.7 (+3)
• Eq-3 Homematic Ccu3 Firmware: 3.41.11, 3.43.16, 3.45.5, 3.45.7, 3.47.10, 3.47.15

References

• https://github.com/psytester/psytester.github.io/blob/master/_posts/hacking_and_pentests/CVEs/2019-03-27-CVE-2019-9583.md
• https://psytester.github.io/CVE-2019-9583/
• https://github.com/psytester/psytester.github.io/blob/master/_posts/hacking_and_pentests/CVEs/2019-03-27-CVE-2019-9583.md
• https://psytester.github.io/CVE-2019-9583/

Get alerted when CVE-2019-9583 or the next vulnerability affects your stack