[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fa6R8bDqYUqo_7EAbSoRZ1GkHNgxM9lGT6ZV8yLzozf0":3},{"article":4,"iocs":43},{"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":26,"category":27,"article_tags":30},"85a5ac61-b348-4104-afa4-10065b2278b8","OpenPLC v3","openplc-v3-1c4459","View CSAF Summary Successful exploitation of this vulnerability could allow an authenticated attacker to write arbitrary files to the filesystem and escalate this into arbitrary native code execution through the normal OpenPLC program compilation process, potentially resulting in code execution as the OpenPLC runtime user. The following versions of OpenPLC v3 are affected: OpenPLC v3 CVSS Vendor Equipment Vulnerabilities v3 9.9 OpenPLC OpenPLC v3 External Control of File Name or Path Background Critical Infrastructure Sectors: Critical Manufacturing, Energy, Transportation Systems, Water and Wastewater Countries\u002FAreas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-14480 OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename (prog_file) directly into the Programs.File database field and later uses this value as the destination path for an uploaded file without validating or restricting the path. Because Python os.path.join() honors attacker‑controlled absolute paths, an authenticated user can write arbitrary files anywhere writable by the OpenPLC webserver process. In the default build pipeline, all C++ source files within the OpenPLC runtime core directory are automatically compiled into the executable runtime binary. By writing a malicious .cpp file into this directory, an authenticated attacker can escalate the arbitrary file write into arbitrary native code execution when the operator triggers a normal program compilation and runtime start. View CVE Details Affected Products OpenPLC v3 Vendor: OpenPLC Product Version: OpenPLC OpenPLC: v3 Product Status: known_affected Remediations Vendor fix OpenPLC recommends users upgrade to OpenPLC v4 as OpenPLC v3 is end-of-life and is no longer receiving patches, bug fixes, or security updates. Relevant CWE: CWE-73 External Control of File Name or Path Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.9 CRITICAL CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:C\u002FC:H\u002FI:H\u002FA:H 4.0 8.7 HIGH CVSS:4.0\u002FAV:N\u002FAC:L\u002FAT:N\u002FPR:L\u002FUI:N\u002FVC:H\u002FVI:H\u002FVA:H\u002FSC:N\u002FSI:N\u002FSA:N Acknowledgments Grady DeRosa reported this vulnerability 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 this vulnerability. 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 this vulnerability has been reported to CISA at this time. Revision History Initial Release Date: 2026-07-09 Date Revision Summary 2026-07-09 1 Initial Publication Legal Notice and Terms of Use","A critical vulnerability (CVE-2026-14480) has been disclosed in OpenPLC v3, affecting critical infrastructure sectors worldwide. The flaw allows authenticated attackers to write arbitrary files to the filesystem and escalate this to arbitrary native code execution by exploiting the program compilation process. OpenPLC v3 is end-of-life, and users are advised to upgrade to OpenPLC v4.","OpenPLC v3 has a critical vulnerability allowing file writes and code execution.","ICS Advisory OpenPLC v3 Release DateJuly 09, 2026 Alert CodeICSA-26-190-01 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Successful exploitation of this vulnerability could allow an authenticated attacker to write arbitrary files to the filesystem and escalate this into arbitrary native code execution through the normal OpenPLC program compilation process, potentially resulting in code execution as the OpenPLC runtime user. The following versions of OpenPLC v3 are affected: OpenPLC v3 CVSS Vendor Equipment Vulnerabilities v3 9.9 OpenPLC OpenPLC v3 External Control of File Name or Path Background Critical Infrastructure Sectors: Critical Manufacturing, Energy, Transportation Systems, Water and Wastewater Countries\u002FAreas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-14480 OpenPLC Runtime v3 contains an authenticated arbitrary file write vulnerability in the legacy web UI program‑upload workflow. The application stores an attacker‑supplied filename (prog_file) directly into the Programs.File database field and later uses this value as the destination path for an uploaded file without validating or restricting the path. Because Python os.path.join() honors attacker‑controlled absolute paths, an authenticated user can write arbitrary files anywhere writable by the OpenPLC webserver process. In the default build pipeline, all C++ source files within the OpenPLC runtime core directory are automatically compiled into the executable runtime binary. By writing a malicious .cpp file into this directory, an authenticated attacker can escalate the arbitrary file write into arbitrary native code execution when the operator triggers a normal program compilation and runtime start. View CVE Details Affected Products OpenPLC v3 Vendor:OpenPLC Product Version:OpenPLC OpenPLC: v3 Product Status:known_affected Remediations Vendor fixOpenPLC recommends users upgrade to OpenPLC v4 as OpenPLC v3 is end-of-life and is no longer receiving patches, bug fixes, or security updates. Relevant CWE: CWE-73 External Control of File Name or Path Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.9 CRITICAL CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:C\u002FC:H\u002FI:H\u002FA:H 4.0 8.7 HIGH CVSS:4.0\u002FAV:N\u002FAC:L\u002FAT:N\u002FPR:L\u002FUI:N\u002FVC:H\u002FVI:H\u002FVA:H\u002FSC:N\u002FSI:N\u002FSA:N Acknowledgments Grady DeRosa reported this vulnerability 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 this vulnerability. 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 this vulnerability has been reported to CISA at this time. Revision History Initial Release Date: 2026-07-09 Date Revision Summary 2026-07-09 1 Initial Publication Legal Notice and Terms of Use This product is provided subject to this Notification and this Privacy & Use policy. Tags Sector: Critical Manufacturing Sector, Energy Sector, Transportation Systems Sector, Water and Wastewater Systems 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 Jul 09, 2026 ICS Advisory | ICSA-26-190-02 Schneider Electric PowerChute Serial Shutdown Jul 09, 2026 ICS Advisory | ICSA-26-190-03 Schneider Electric Easergy MiCOM Px40 Series Jul 07, 2026 ICS Advisory | ICSA-26-188-03 Hitachi Energy e-mesh EMS Jul 07, 2026 ICS Advisory | ICSA-26-188-02 Hitachi Energy PROMOD V","https:\u002F\u002Fwww.cisa.gov\u002Fnews-events\u002Fics-advisories\u002Ficsa-26-190-01",null,"2026-07-09T12:00:00+00:00","2026-07-09T18:00:18.228882+00:00",9,[18,20,23],{"name":6,"type":19},"product",{"name":21,"type":22},"OpenPLC","vendor",{"name":24,"type":25},"Industrial Control Systems","technology","80544778-fabb-4dcd-aa35-17492e5dcf4f",{"id":26,"icon":13,"name":28,"slug":29},"Vulnerabilities","vulnerabilities",[31,36,38],{"category":32},{"id":33,"icon":13,"name":34,"slug":35},"6cbdd207-aaa1-4176-9534-e156b125e917","Nation-state","nation-state",{"category":37},{"id":26,"icon":13,"name":28,"slug":29},{"category":39},{"id":40,"icon":13,"name":41,"slug":42},"d6f63bb8-0801-486a-be7f-171400700454","IoT\u002FOT","iot-ot",[44],{"type":45,"value":46,"context":47},"cve","CVE-2026-14480","OpenPLC v3 arbitrary file write and code execution vulnerability"]