CVE-2023-25619 Denial of service in Legacy Modicon Premium CPUs (TSXP57*)
Attackers can cause denial of service on Schneider Electric Modicon PLCs by exploiting improper exception handling in Modbus TCP 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-2023-25619?
CVE-2023-25619 is a high-severity denial of service vulnerability in Schneider Electric Legacy Modicon Premium CPUs (TSXP57*), published on 19 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause denial of service of the controller when communicating over the Modbus TCP protocol.
Weakness: CWE-754
Which versions are affected by CVE-2023-25619?
It affects 7 products.
Products include Schneider-Electric Bmeh58s Firmware, Schneider-Electric Bmep58s Firmware, Schneider-Electric Modicon M340 Firmware, Schneider-Electric Modicon M580 Firmware, Schneider-Electric Modicon Mc80 Firmware, Schneider-Electric Modicon Momentum Unity M1e Processor Firmware and 1 more.
How do I fix CVE-2023-25619?
No fix has been published for CVE-2023-25619 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-2023-25619 being exploited?
There is no known exploitation of CVE-2023-25619 in the wild and no public exploit code.
Sources
Also known as GHSA-j5wq-fj8p-rh45.