CVE-2016-7836
SKYSEA Client View Improper Authentication Vulnerability
SKYSEA Client View
SKYSEA Client View Ver.11.221.03 and earlier allows remote code execution via a flaw in processing authentication on the TCP connection with the management console program.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 14 October 2025. US federal agencies were required to remediate it by 4 November 2025.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 19.2%, which is higher than 97.3% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2016-7836 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2016-7836.
What does CVE-2016-7836 affect?
CVE-2016-7836 affects SKYSEA Client View. SKYSEA Client View Ver.11.221.03 and earlier allows remote code execution via a flaw in processing authentication on the TCP connection with the management console program.
How severe is CVE-2016-7836?
CVE-2016-7836 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 19.2%, higher than 97.3% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 4 November 2025.
How should organisations respond to CVE-2016-7836?
Apply the vendor patch for SKYSEA Client View as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.