CVE-2024-9684 Denial of service in IEC-60870-5-104
Remote attackers can cause a denial of service in FreyrSCADA IEC-60870-5-104 servers by sending specific message sequences.
- 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-2024-9684?
CVE-2024-9684 is a high-severity denial of service vulnerability in FreyrSCADA IEC-60870-5-104, published on 23 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FreyrSCADA/IEC-60870-5-104 server v21.06.008 allows remote attackers to cause a denial of service by sending specific message sequences.
Weakness: CWE-119
Which versions are affected by CVE-2024-9684?
How do I fix CVE-2024-9684?
No fix has been published for CVE-2024-9684 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-2024-9684 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-9684 exists.
Sources
Also known as GHSA-8x47-95qc-jg46.