Medium severity · published Jul 14, 2026
CVE-2026-10573
1734 POINT I/OTM - Denial of Service via Malformed Inputs on CIP Object
6.3
CVSS
0.3%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
1P
1734 POINT I/O · Rockwell Automation
3.023 · source: vendor
In the news
ThreatIntelHigh
Rockwell Automation 1734 POINT I/O
View CSAF
Summary
Successful exploitation of this vulnerability could allow for an attacker to cause a denial-of-service condition on the product.
The following versions of Rockwell Automation 1734 POINT I/O are affected:
1734 POINT I/O 3.023
CVSS
Vendor
Equipment
Vulnerabilities
v3 7.5
Rockwell Automation
Rockwell Automation 1734 POINT I/O
Allocation of Resources Without Limits or Throttling
Background
Critical Infrastructure Sectors: Critical Manufacturing
Countries/Areas Deployed: Worldwide
Company Headquarters Location: United States
Vulnerabilities
Expand All +
CVE-2026-10573
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.
View CVE Details
Affected Products
Rockwell Automation 1734 POINT I/O
Vendor: Rockwell Automation
Product Version: Rockwell Automation 1734 POINT I/O: 3.023
Product Status: known_affected
Remediations
Mitigation Rockwell Automation recommends users are to migrate to 5034-OB8.
Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight)....
Jul 21, 2026·CISA Advisories
