CVE-2026-79625 Improper Synchronization in Monitoring in CODESYS Control Runtime
An authenticated remote attacker can exploit a race condition in monitoring to cause denial of service or data corruption in CODESYS Control Runtime.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-79625?
CVE-2026-79625 is a high-severity vulnerability in CODESYS Control RTE (SL), published on 30 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Affected products do not properly synchronize access to their monitoring functionality. When multiple clients send concurrent requests, this may lead to incorrect reads or writes, or to corruption of internal memory structures. An authenticated remote attacker with monitoring access can exploit this issue to cause incorrect data processing or a denial-of-service condition.
Weakness: CWE-362
Which versions are affected by CVE-2026-79625?
How do I fix CVE-2026-79625?
No fix has been published for CVE-2026-79625 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-79625 being exploited?
There is no known exploitation of CVE-2026-79625 in the wild and no public exploit code.
Sources
Also known as GHSA-crvr-hhmx-9hp6.