CVE-2016-4523 Trihedral VTScada (formerly VTS): memory-safety flaw
In plain words: The program mishandles the memory it uses to keep track of data. A specially made input can scramble that memory. Usually lets an attacker crash the program or run their own code with its permissions.
Confirmed exploited by CISA on · US federal patch deadline May 6, 2022
What to do
- Install Trihedral's security update for VTScada (formerly VTS). 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.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
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
- Trihedral VTScada (formerly VTS) Denial-of-Service Vulnerability
- Product
- Trihedral VTScada (formerly VTS)
- CISA description
- The WAP interface in Trihedral VTScada (formerly VTS) allows remote attackers to cause a denial-of-service (DoS).
- Type of flaw
- Memory-safety flaw (CWE-119)
- Confirmed exploited
- Apr 15, 2022
- US federal patch deadline
- May 6, 2022
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2016-4523 ·
Questions about CVE-2016-4523
Is CVE-2016-4523 being exploited?
Yes. CISA added CVE-2016-4523 to its Known Exploited Vulnerabilities catalog on Apr 15, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2016-4523?
Install Trihedral's security update for VTScada (formerly VTS). 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-2016-4523?
Only if you use Trihedral VTScada (formerly VTS). Aimed mostly at company systems — you are affected through the companies you use, not your own phone.