View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition on the affected product. The following versions of Rockwell Automation Flex 5000 Adapter are affected: Flex 5000 Adapter 6.011 (CVE-2026-12659) CVSS Vendor Equipment Vulnerabilities v3 7.5 Rockwell Automation Rockwell Automation Flex 5000 Adapter Double Free Background Critical Infrastructure Sectors: Critical Manufacturing, Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-12659 A denial-of-service security issue exists in the affected products. The security issue stems from improper handling of exceptional conditions when processing crafted CIP packets sent to the adapter. A power cycle is required to recover the module and associated I/O. View CVE Details Affected Products Rockwell Automation Flex 5000 Adapter Vendor: Rockwell Automation Product Version: Rockwell Automation Flex 5000 Adapter: 6.011 Product Status: known_affected Remediations Vendor fix Rockwell Automation recommends users to upgrade to the following: Flex 5000 Adapter version 6.012. 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://supp...