Quick answers
- Is CVE-2016-7836 exploited in the wild?
- Yes. CVE-2016-7836 is known to be exploited in the wild, first recorded on 14 October 2025. Treat it as urgent.
- How severe is CVE-2016-7836?
- Critical severity, with a CVSS score of 9.8, published 14 October 2025.
- Which products and versions are affected?
- Sky Co., Ltd. SKYSEA Client View Ver.11.221.03 and earlier.
- Is there a fix for CVE-2016-7836?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2016-7836 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2016-7836?
- Check whether you run Skysea Client View or Skysea ClientView. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An improper authentication vulnerability (CWE-287) exists in SKYSEA Client View versions 11.221.03 and earlier. The flaw resides in the management console program's handling of TCP connections, where authentication checks are incorrectly processed. A remote, unauthenticated attacker can exploit this by sending specially crafted packets to the management port, leading to arbitrary code execution with system-level privileges. This vulnerability has been observed in the wild and is included in the CISA Known Exploited Vulnerabilities (KEV) catalog. Users should update to a patched version or apply vendor-recommended mitigations immediately.
Affected products
- Sky Co., Ltd. SKYSEA Client View Ver.11.221.03 and earlier
Timeline
- 2016-12-21: advisory: Vendor advisory released by Sky Co., Ltd.
- 2017-06-09: disclosed: NVD published date
- 2025-10-14: kev added: Added to CISA Known Exploited Vulnerabilities catalog