CVE-2026-22553 InSAT MasterSCADA BUK-TS OS Command Injection
Attackers can execute arbitrary OS commands via the MMadmServ web interface in InSAT MasterSCADA BUK-TS, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-22553?
CVE-2026-22553 is a critical command injection vulnerability in InSAT MasterSCADA BUK-TS, published on 24 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
All versions of InSAT MasterSCADA BUK-TS are susceptible to OS command injection through a field in its MMadmServ web interface. Malicious users that use the vulnerable endpoint are potentially able to cause remote code execution.
Weakness: CWE-78
Which versions are affected by CVE-2026-22553?
It affects 1 product.
Products include Insat Masterscada.
How do I fix CVE-2026-22553?
No fix has been published for CVE-2026-22553 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-22553 being exploited?
There is no known exploitation of CVE-2026-22553 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in InSAT MasterSCADA BUK-TS
Sources
Also known as GHSA-wxjg-wxm8-w2qc.