CVE-2024-11737 Denial of service in Modicon Controllers M241 / M251
Unauthenticated attackers can cause denial of service and compromise data integrity via crafted Modbus packets on Schneider Modicon controllers.
- 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-2024-11737?
CVE-2024-11737 is a critical denial of service vulnerability in Schneider Electric Modicon Controllers M241 / M251, published on 11 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CWE-20: Improper Input Validation vulnerability exists that could lead to a denial of service and a loss of confidentiality, integrity of the controller when an unauthenticated crafted Modbus packet is sent to the device.
Weakness: CWE-20
Which versions are affected by CVE-2024-11737?
How do I fix CVE-2024-11737?
No fix has been published for CVE-2024-11737 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-2024-11737 being exploited?
There is no known exploitation of CVE-2024-11737 in the wild and no public exploit code.
Sources
Also known as GHSA-j45x-3v7g-qxh8.