CVE-2021-22277 AC 800M MMS - Denial of Service vulnerability in MMS communication
An attacker can cause a denial of service in ABB 800xA control software via improper input validation in MMS communication.
- 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-2021-22277?
CVE-2021-22277 is a high-severity denial of service vulnerability in ABB 800xA, Control Software for AC 800M, published on 1 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Input Validation vulnerability in ABB 800xA, Control Software for AC 800M, Control Builder Safe, Compact Product Suite - Control and I/O, ABB Base Software for SoftControl allows an attacker to cause the denial of service.
Weakness: CWE-20
Which versions are affected by CVE-2021-22277?
It affects 4 products.
Products include Abb 800xa, Abb Base Software, Abb Compact Product Suite, Abb Control Builder Safe.
How do I fix CVE-2021-22277?
No fix has been published for CVE-2021-22277 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-22277 being exploited?
There is no known exploitation of CVE-2021-22277 in the wild and no public exploit code.
Other vulnerabilities in ABB 800xA, Control Software for AC 800M
Sources
Also known as GHSA-88h6-w4mj-xwh4.