Rockwell Automation ICS Products Hit by Authentication, Authorization, DoS, and RCE Flaws
CISA republished multiple Rockwell Automation advisories covering vulnerabilities across FactoryTalk Analytics PavilionX, RSLinx Classic, CompactLogix 5370, Logix 5370/5570 controllers, and FLEX I/O EtherNet/IP Adapters used in critical manufacturing environments worldwide. The issues include an authorization bypass in PavilionX (CVE-2025-14272) that could let an unauthenticated attacker perform privileged administrative actions, and a third-party flaw in RSLinx Classic (CVE-2020-13573) tied to out-of-bounds read and stack-based buffer overflow conditions that could cause denial of service or enable remote arbitrary code execution.
Additional advisories detail multiple CIP-related denial-of-service weaknesses in CompactLogix and Logix controllers, including CVE-2026-11317, where crafted CIP messages can trigger major nonrecoverable faults requiring a program download, as well as sequence-number, source-IP, and connection-ID issues that can induce controller faults. CISA also warned that FLEX I/O EtherNet/IP Adapters version 2.012 are affected by CVE-2026-0646, which can fault devices through malformed CIP requests, and CVE-2026-0647, a critical authentication bypass in the embedded web server that allows password changes through a crafted HTTP GET request, potentially leading to account takeover and loss of availability; CISA said no known public exploitation had been reported and urged operators to isolate control networks, reduce internet exposure, and secure remote access with firewalls and updated VPNs.

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How this story unfolded
12 events from the most recent confirmed update back to the earliest known activity.
Rockwell patches FactoryTalk Historian vulnerabilities
Rockwell Automation released patches for vulnerabilities affecting FactoryTalk Historian. SecurityWeek reported that CISA distributed Rockwell advisories for other products on June 16, 2026, but did not publish an advisory for the FactoryTalk Historian issues.
Rockwell Automation publishes security advisory SD1777
Rockwell Automation published security advisory SD1777 on 2026-06-16. The provided reference includes the advisory identifier and publication date but no synopsis details.
Rockwell Automation publishes security advisory SD1776
Rockwell Automation published security advisory SD1776 on 2026-06-16. The provided reference includes the advisory identifier and publication date but no synopsis details.
Rockwell Automation publishes security advisory SD1775
Rockwell Automation published security advisory SD1775 on 2026-06-16. The provided reference includes the advisory identifier and publication date but no synopsis details.
Rockwell Automation publishes security advisory SD1774
Rockwell Automation published security advisory SD1774 on 2026-06-16. The provided reference includes the advisory identifier and publication date but no synopsis details.
Rockwell Automation publishes security advisory SD1773
Rockwell Automation published security advisory SD1773 on 2026-06-16. The provided reference includes the advisory identifier and publication date but no synopsis details.
Rockwell Automation publishes security advisory SD1772
Rockwell Automation published security advisory SD1772 on 2026-06-16. The provided reference includes the advisory identifier and publication date but no synopsis details.
CISA republishes advisory for FLEX I/O EtherNet/IP Adapter flaws
On 2026-06-16, CISA republished a Rockwell Automation advisory covering CVE-2026-0646 and CVE-2026-0647 in FLEX I/O EtherNet/IP Adapters 1794-AENTR and 1794-AENTRXT version 2.012. The vulnerabilities include a denial-of-service condition and a critical authentication bypass in the embedded web server that can let an unauthenticated attacker change the web interface password.
CISA republishes advisory for CompactLogix CIP denial-of-service issues
On 2026-06-16, CISA republished a Rockwell Automation advisory describing two vulnerabilities in CompactLogix 5370 L1, L2, and L3 controllers earlier than V38.011. The issues involve improper validation in the CIP protocol and exposure of CIP Connection IDs through the web interface, enabling denial-of-service conditions that cause a minor fault.
CISA republishes advisory for Logix 5370 and 5570 controller DoS bug
On 2026-06-16, CISA republished a Rockwell Automation advisory for CVE-2026-11317 affecting multiple Logix 5370 and 5570 controller families. The flaw can be triggered with a crafted CIP message to cause a major nonrecoverable fault, and CISA said no known public exploitation had been reported at the time of publication.
CISA republishes advisory for RSLinx Classic vulnerability
On 2026-06-16, CISA republished a Rockwell Automation advisory for RSLinx Classic 4.50.00 and earlier covering CVE-2020-13573. The advisory said exploitation could cause denial of service and also described a stack-based buffer overflow that could allow remote arbitrary code execution; no known public exploitation was reported to CISA at publication time.
CISA republishes advisory for FactoryTalk Analytics PavilionX flaw
On 2026-06-16, CISA republished a Rockwell Automation advisory describing CVE-2025-14272, a missing-authorization flaw in FactoryTalk Analytics PavilionX versions earlier than 7.01 that could let an unauthenticated attacker perform privileged administrative actions. CISA said no known public exploitation specifically targeting the issue had been reported at the time of publication.
Related entities
Vulnerabilities, threat actors, malware, products, organizations, and breaches Mallory has linked to this story.
Sources
13 references tracked. Mallory keeps watching after this page renders.
Rockwell Automation Vulnerabilities: FactoryTalk, FLEX I/O
securityonline.info
Open sourceRockwell Automation Patches Vulnerabilities in ICS Controllers and Software - SecurityWeek
securityweek.com
Open sourceRockwell Automation CompactLogix | CISA
cisa.gov
Open sourceSD1773 | Security Advisory | Rockwell Automation | US
rockwellautomation.com
Open sourceRockwell Automation Logix 5370 & 5570 Controllers Vulnerable To Denial of Service Via CIP | CISA
cisa.gov
Open sourceRockwell Automation FactoryTalk Analytics PavilionX | CISA
cisa.gov
Open sourceSD1776 | Security Advisory | Rockwell Automation | US
rockwellautomation.com
Open sourceRockwell Automation FLEX I/O EtherNet/IP Adapters | CISA
cisa.gov
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