[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fNaS8Ds9-ypc6QTF-5vxSL6LYEFF8akiAJJBbozVMgCY":3},{"article":4,"iocs":51},{"id":5,"title":6,"slug":7,"summary":8,"ai_summary":9,"brief":10,"full_text":11,"url":12,"image_url":13,"published_at":14,"ingested_at":15,"relevance_score":16,"entities":17,"category_id":29,"category":30,"article_tags":33},"30db4fc8-9a74-4dc7-8791-62accb33bcff","Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters","rockwell-automation-flex-i-o-ethernet-ip-adapters-59af5c","View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized access, account takeover, and cause loss of availability. The following versions of Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters are affected: 1794-AENTR V2.012 (CVE-2026-0646, CVE-2026-0647) 1794-AENTRXT V2.012 (CVE-2026-0646, CVE-2026-0647) CVSS Vendor Equipment Vulnerabilities v3 9.4 Rockwell Automation Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters Missing Release of Memory after Effective Lifetime, Missing Authentication for Critical Function Background Critical Infrastructure Sectors: Critical Manufacturing Countries\u002FAreas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-0646 A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests. This vulnerability can result in the adapter faulting and losing connection to its associated I\u002FO modules, requiring a manual reset to recover. View CVE Details Affected Products Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters Vendor: Rockwell Automation Product Version: Rockwell Automation 1794-AENTR: V2.012, Rockwell Automation 1794-AENTRXT: V2.012 Product Status: known_affected Remediations Mitigation Rockwell Automation recommends users update to 2.013 to resolve these vulnerabilities. Mitigation For more information, please visit Rockwell Automation's SD1775 https:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.html https:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.html Relevant CWE: CWE-401 Missing Release of Memory after Effective Lifetime Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H 4.0 8.7 HIGH CVSS:4.0\u002FAV:N\u002FAC:L\u002FAT:N\u002FPR:N\u002FUI:N\u002FVC:N\u002FVI:N\u002FVA:H\u002FSC:N\u002FSI:N\u002FSA:N CVE-2026-0647 An improper authentication security issue exists within the 1794-AENTR adapter's embedded web server. The vulnerability allows an unauthenticated attacker to change the device's web interface password by sending a crafted HTTP GET request to a specific endpoint, without any prior authentication being required. If exploited, this could lead to unauthorized access, account takeover, and loss of the device's embedded web server's availability. View CVE Details Affected Products Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters Vendor: Rockwell Automation Product Version: Rockwell Automation 1794-AENTR: V2.012, Rockwell Automation 1794-AENTRXT: V2.012 Product Status: known_affected Remediations Mitigation Rockwell Automation recommends users update to 2.013 to resolve these vulnerabilities. Mitigation For more information, please visit Rockwell Automation's SD1775 https:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.html https:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.html Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.4 CRITICAL CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:L\u002FI:H\u002FA:H 4.0 8.8 HIGH CVSS:4.0\u002FAV:N\u002FAC:L\u002FAT:N\u002FPR:N\u002FUI:N\u002FVC:L\u002FVI:H\u002FVA:H\u002FSC:N\u002FSI:N\u002FSA:N Acknowledgments Rockwell Automation reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https:\u002F\u002Fwww.cisa.gov\u002Fnotification) and this Privacy & Use policy (https:\u002F\u002Fwww.cisa.gov\u002Fprivacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and\u002For systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov\u002Fics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov\u002Fics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-06-16 Date Revision Summary 2026-06-16 1 Initial Republication of Rockwell Automation Security Advisory SD1775 Legal Notice and Terms of Use","Rockwell Automation has released security advisories for its FLEX I\u002FO EtherNet\u002FIP Adapters, detailing two critical vulnerabilities. CVE-2026-0646 allows for denial-of-service by causing adapter faults and connection loss, while CVE-2026-0647 enables unauthenticated attackers to change web interface passwords, leading to account takeover. Successful exploitation could result in unauthorized access, account takeover, and loss of availability, impacting critical manufacturing sectors.","Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters vulnerable to DoS and account takeover.","ICS Advisory Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters Release DateJune 16, 2026 Alert CodeICSA-26-167-05 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized access, account takeover, and cause loss of availability. The following versions of Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters are affected: 1794-AENTR V2.012 (CVE-2026-0646, CVE-2026-0647) 1794-AENTRXT V2.012 (CVE-2026-0646, CVE-2026-0647) CVSS Vendor Equipment Vulnerabilities v3 9.4 Rockwell Automation Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters Missing Release of Memory after Effective Lifetime, Missing Authentication for Critical Function Background Critical Infrastructure Sectors: Critical Manufacturing Countries\u002FAreas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-0646 A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests. This vulnerability can result in the adapter faulting and losing connection to its associated I\u002FO modules, requiring a manual reset to recover. View CVE Details Affected Products Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters Vendor:Rockwell Automation Product Version:Rockwell Automation 1794-AENTR: V2.012, Rockwell Automation 1794-AENTRXT: V2.012 Product Status:known_affected Remediations MitigationRockwell Automation recommends users update to 2.013 to resolve these vulnerabilities. MitigationFor more information, please visit Rockwell Automation's SD1775 https:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.htmlhttps:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.html Relevant CWE: CWE-401 Missing Release of Memory after Effective Lifetime Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H 4.0 8.7 HIGH CVSS:4.0\u002FAV:N\u002FAC:L\u002FAT:N\u002FPR:N\u002FUI:N\u002FVC:N\u002FVI:N\u002FVA:H\u002FSC:N\u002FSI:N\u002FSA:N CVE-2026-0647 An improper authentication security issue exists within the 1794-AENTR adapter's embedded web server. The vulnerability allows an unauthenticated attacker to change the device's web interface password by sending a crafted HTTP GET request to a specific endpoint, without any prior authentication being required. If exploited, this could lead to unauthorized access, account takeover, and loss of the device's embedded web server's availability. View CVE Details Affected Products Rockwell Automation FLEX I\u002FO EtherNet\u002FIP Adapters Vendor:Rockwell Automation Product Version:Rockwell Automation 1794-AENTR: V2.012, Rockwell Automation 1794-AENTRXT: V2.012 Product Status:known_affected Remediations MitigationRockwell Automation recommends users update to 2.013 to resolve these vulnerabilities. MitigationFor more information, please visit Rockwell Automation's SD1775 https:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.htmlhttps:\u002F\u002Fwww.rockwellautomation.com\u002Fen-us\u002Ftrust-center\u002Fsecurity-advisories\u002Fadvisory.SD1775.html Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.4 CRITICAL CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:L\u002FI:H\u002FA:H 4.0 8.8 HIGH CVSS:4.0\u002FAV:N\u002FAC:L\u002FAT:N\u002FPR:N\u002FUI:N\u002FVC:L\u002FVI:H\u002FVA:H\u002FSC:N\u002FSI:N\u002FSA:N Acknowledgments Rockwell Automation reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https:\u002F\u002Fwww.cisa.gov\u002Fnotification) and this Privacy & Use policy (https:\u002F\u002Fwww.cisa.gov\u002Fprivacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and\u002For systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov\u002Fics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov\u002Fics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-06-16 Date Revision Summary 2026-06-16 1 Initial Republication of Rockwell Automation Security Advisory SD1775 Legal Notice and Terms of Use This product is provided subject to this Notification and this Privacy & Use policy. Vendor Rockwell Automation Tags Sector: Critical Manufacturing Sector Topics: Industrial Control System Vulnerabilities, Industrial Control Systems Please share your thoughts We recently updated our anonymous product survey; we welcome your feedback. Related Advisories Jun 16, 2026 ICS Advisory | ICSA-26-167-03 Rockwell Automation Logix 5370 & 5570 Controllers Vulnerable To Denial of Service Via CIP Jun 16, 2026 ICS Advisory | ICSA-26-167-04 Rockwell Automation CompactLogix Jun 16, 2026 ICS Advisory | ICSA-26-167-02 Rockwell Automation RSLinx Jun 16, 2026 ICS Advisory | ICSA-26-167-01 Rockwell Automation FactoryTalk Analytics PavilionX","https:\u002F\u002Fwww.cisa.gov\u002Fnews-events\u002Fics-advisories\u002Ficsa-26-167-05",null,"2026-06-16T12:00:00+00:00","2026-06-16T18:00:10.323294+00:00",8,[18,21,24,27],{"name":19,"type":20},"FLEX I\u002FO EtherNet\u002FIP Adapters","product",{"name":22,"type":23},"Rockwell Automation","vendor",{"name":25,"type":26},"EtherNet\u002FIP","technology",{"name":28,"type":26},"CIP protocol","80544778-fabb-4dcd-aa35-17492e5dcf4f",{"id":29,"icon":13,"name":31,"slug":32},"Vulnerabilities","vulnerabilities",[34,39,41,46],{"category":35},{"id":36,"icon":13,"name":37,"slug":38},"6cbdd207-aaa1-4176-9534-e156b125e917","Nation-state","nation-state",{"category":40},{"id":29,"icon":13,"name":31,"slug":32},{"category":42},{"id":43,"icon":13,"name":44,"slug":45},"d6f63bb8-0801-486a-be7f-171400700454","IoT\u002FOT","iot-ot",{"category":47},{"id":48,"icon":13,"name":49,"slug":50},"e7b231c8-5f79-4465-8d38-1ef13aea5a14","Threat Intelligence","threat-intelligence",[52,56],{"type":53,"value":54,"context":55},"cve","CVE-2026-0646","Denial-of-service vulnerability in FLEX I\u002FO EtherNet\u002FIP Adapters due to improper memory handling.",{"type":53,"value":57,"context":58},"CVE-2026-0647","Improper authentication vulnerability in FLEX I\u002FO EtherNet\u002FIP Adapters' web server, allowing password changes."]