CVE-2024-8936 Information disclosure in Modicon M340 CPU (part numbers BMXP34*)
An attacker can read controller memory via a crafted Modbus request after a Man-In-The-Middle attack on Schneider Electric Modicon M340 CPUs.
- 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-2024-8936?
CVE-2024-8936 is a high-severity vulnerability in Schneider Electric Modicon M340 CPU (part numbers BMXP34*), published on 13 Nov 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 loss of confidentiality of controller memory after a successful Man-In-The-Middle attack followed by sending a crafted Modbus function call used to tamper with memory.
Weakness: CWE-20
Which versions are affected by CVE-2024-8936?
How do I fix CVE-2024-8936?
No fix has been published for CVE-2024-8936 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-8936 being exploited?
There is no known exploitation of CVE-2024-8936 in the wild and no public exploit code.
Sources
Also known as GHSA-rrmf-46w6-f74r.