CVE-2022-37301 Integer overflow in Legacy Modicon Quantum/Premium
Integer underflow in Modbus TCP handling causes memory access violations and denial of service on Schneider Electric Modicon PLCs.
- 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-2022-37301?
CVE-2022-37301 is a high-severity vulnerability in Schneider Electric Legacy Modicon Quantum/Premium, published on 22 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A CWE-191: Integer Underflow (Wrap or Wraparound) vulnerability exists that could cause a denial of service of the controller due to memory access violations when using the Modbus TCP protocol. Affected products: Modicon M340 CPU (part numbers BMXP34*)(V3.40 and prior), Modicon M580 CPU (part numbers BMEP* and BMEH*)(V3.22 and prior), Legacy Modicon Quantum/Premium(All Versions), Modicon Momentum MDI (171CBU*)(All Versions), Modicon MC80 (BMKC80)(V1.7 and prior)
Weakness: CWE-191
Which versions are affected by CVE-2022-37301?
It affects 48 products.
Products include Schneider-Electric Modicon M340 Bmx P34-2010 Firmware, Schneider-Electric Modicon M340 Bmx P34-2030 Firmware, Schneider-Electric Modicon M580 Bmeh582040 Firmware, Schneider-Electric Modicon M580 Bmeh582040c Firmware, Schneider-Electric Modicon M580 Bmeh582040s Firmware, Schneider-Electric Modicon M580 Bmeh584040 Firmware and 42 more.
How do I fix CVE-2022-37301?
No fix has been published for CVE-2022-37301 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-37301 being exploited?
There is no known exploitation of CVE-2022-37301 in the wild and no public exploit code.
Sources
Also known as GHSA-4v3w-rm54-5xg3.