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  3. CVE-2016-7836
Exploited in the wildServers & business softwareWork IT

CVE-2016-7836 SKYSEA Client View: login or permission bypass

In plain words: A door that should be locked is not: part of the system can be reached without a valid login or permission. The attacker gets in as a user or administrator without knowing a password.

Confirmed exploited by CISA on · US federal patch deadline Nov 4, 2025

What to do

  1. Install SKYSEA's security update for Client View. If no update exists, follow the vendor's workaround or stop using the product until one ships.
  2. Keep a list of every internet-facing server you run so nothing is forgotten.
  3. Patch anything in this catalog first, ahead of normal patch cycles.
  4. Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.

Read SKYSEA's advisory ↗

Who is affected

Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.

The details

Official name
SKYSEA Client View Improper Authentication Vulnerability
Product
SKYSEA Client View
CISA description
SKYSEA Client View contains an improper authentication vulnerability that allows remote code execution via a flaw in processing authentication on the TCP connection with the management console program.
Type of flaw
Login or permission bypass (CWE-287)
Confirmed exploited
Oct 14, 2025
US federal patch deadline
Nov 4, 2025

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Answering about CVE-2016-7836 ·

Questions about CVE-2016-7836

Is CVE-2016-7836 being exploited?

Yes. CISA added CVE-2016-7836 to its Known Exploited Vulnerabilities catalog on Oct 14, 2025, which means there is reliable evidence of real-world attacks.

How do I fix CVE-2016-7836?

Install SKYSEA's security update for Client View. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.

Am I affected by CVE-2016-7836?

Only if you use SKYSEA Client View. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

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