CVE-2026-10573 1734 POINT I/OTM - Denial of Service via Malformed Inputs on CIP Object
Attackers can cause a denial of service on Rockwell 1734 POINT I/O modules by sending malformed CIP messages, requiring a manual restart to recover.
- 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-2026-10573?
CVE-2026-10573 is a medium-severity denial of service vulnerability in Rockwell Automation 1734 POINT I/O, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service security issue exists in 1734 POINT I/O™ module. The security issue stems from improper handling of crafted CIP messages, which can cause the module to enter a faulted state. A restart is required to recover.
Weakness: CWE-770
Which versions are affected by CVE-2026-10573?
How do I fix CVE-2026-10573?
No fix has been published for CVE-2026-10573 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-2026-10573 being exploited?
There is no known exploitation of CVE-2026-10573 in the wild and no public exploit code.
Sources
Also known as GHSA-7jrm-8f72-vqwm.