{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-1286",
        "tracking": {
            "current_release_date": "2026-03-25T18:29:01.712711Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-1286",
            "initial_release_date": "2026-03-10T17:38:38.133490Z",
            "revision_history": [
                {
                    "date": "2026-03-10T17:38:38.133490Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-03-10T17:38:41.628731Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-03-10T18:32:10.699380Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-03-10T18:32:18.038934Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-10T18:39:15.742465Z",
                    "number": "5",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-03-11T15:37:22.412579Z",
                    "number": "6",
                    "summary": "Source created.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-11T15:37:30.778595Z",
                    "number": "7",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-20T10:12:08.648369Z",
                    "number": "8",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-20T10:12:12.334392Z",
                    "number": "9",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-25T18:28:50.175936Z",
                    "number": "10",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (2).| Product Remediations created (2).| References created (3).| CWES updated (1)."
                },
                {
                    "date": "2026-03-25T18:28:58.054447Z",
                    "number": "11",
                    "summary": "NCSC Score updated."
                }
            ],
            "status": "interim",
            "version": "11"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:generic/<cs8.1",
                                "product": {
                                    "name": "vers:generic/<cs8.1",
                                    "product_id": "CSAFPID-5907614"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:schneider/cs8.1",
                                "product": {
                                    "name": "vers:schneider/cs8.1",
                                    "product_id": "CSAFPID-5907613"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/versionspriortocs8.1",
                                "product": {
                                    "name": "vers:unknown/versionspriortocs8.1",
                                    "product_id": "CSAFPID-5775227"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "EcoStruxure™ Foxboro DCS"
                    }
                ],
                "category": "vendor",
                "name": "Schneider Electric"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-1286",
            "cwe": {
                "id": "CWE-502",
                "name": "Deserialization of Untrusted Data"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "CWE-502: Deserialization of untrusted data vulnerability exists that could lead to loss of confidentiality, integrity and potential remote code execution on workstation when an admin authenticated user opens a malicious project file.",
                    "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-1286"
                },
                {
                    "category": "description",
                    "text": "CWE-502: Deserialization of untrusted data vulnerability exists that could lead to loss of confidentiality, integrity and potential remote code execution on workstation when an admin authenticated user opens a malicious project file.",
                    "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-1286"
                },
                {
                    "category": "description",
                    "text": "CWE-502: Deserialization of untrusted data vulnerability exists that could lead to loss of confidentiality, integrity \r\nand potential remote code execution on workstation when an admin authenticated user opens a malicious \r\nproject file.",
                    "title": "schneider - https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-069-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-069-03.json"
                },
                {
                    "category": "other",
                    "text": "0.00292",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "title": "CVSSV4"
                },
                {
                    "category": "other",
                    "text": "7.0",
                    "title": "CVSSV4 base score"
                },
                {
                    "category": "other",
                    "text": "5.3",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "VENDOR FIX as product remediation category, Is related to an uncommon product source",
                    "title": "NCSC Score top increasing factors"
                },
                {
                    "category": "other",
                    "text": "Is related to CWE-502 (Deserialization of Untrusted Data), There is cwe data available from source Nvd",
                    "title": "NCSC Score top decreasing factors"
                }
            ],
            "product_status": {
                "fixed": [
                    "CSAFPID-5907613"
                ],
                "known_affected": [
                    "CSAFPID-5775227",
                    "CSAFPID-5907614"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-1286"
                },
                {
                    "category": "external",
                    "summary": "Source raw - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/1xxx/CVE-2026-1286.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1286"
                },
                {
                    "category": "external",
                    "summary": "Source raw - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-1286"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-1286"
                },
                {
                    "category": "external",
                    "summary": "Source raw - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - schneider",
                    "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-069-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-069-03.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd; schneider",
                    "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-069-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-069-03.pdf"
                },
                {
                    "category": "external",
                    "summary": "Reference - schneider",
                    "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-069-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=sevd-2026-069-03.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - schneider",
                    "url": "https://www.se.com/ww/en/download/document/7EN52-0390"
                }
            ],
            "remediations": [
                {
                    "category": "mitigation",
                    "details": "If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit:\n\nThe vulnerability is attacked with manipulated data from external sources to the DCS computers. Examples for these are: \n* Configuration taglists \n* DirectAccess Scripts  \n* Any partial or full Galaxy backups \n* Library files \n* Code snippets \n* ASCII files of any sort \n* Generally, any file getting from outside the DCS computer on a DCS computer. \n\nOnly using data from trusted sources, check for correct file name endings on data files, check for reasonable file sizes for any files coming to the system, and check structured data for any fields or columns which might be unexpected. \n\nCheck for unusual manipulations of data within data files and reject files containing unexpected data or structures. \n\nUse secure communication channels and encrypt communications when communicating outside the site network. \n\n Avoid and ban removable media (e.g. USB sticks or drives) \n\nMinimize count of users with engineering or administrative rights to DCS computers and ensure all interactions on DCS computers are executed with minimal user access rights. \n\nConsequently, isolating Foxboro DCS computers will help minimizing the risk of this vulnerability being exploited.",
                    "product_ids": [
                        "CSAFPID-5907614"
                    ],
                    "restart_required": {
                        "category": "none"
                    }
                },
                {
                    "category": "vendor_fix",
                    "details": "Version CS 8.1 of EcoStruxure™ Foxboro DCS includes a fix for this vulnerability and is available through https://buyautomation.se.com/  \n\nCS 8.1 requires FX-V3 licenses, standard upgrade procedures apply. A reboot is required for workstations and servers. Depending on the existing system version, online upgrade without production interruption might be possible. \n\nWe recommend you work with your local Field Service Representative or Technical Service Consultant for further information. ",
                    "product_ids": [
                        "CSAFPID-5907614"
                    ],
                    "restart_required": {
                        "category": "system"
                    },
                    "url": "https://buyautomation.se.com/"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-5775227",
                        "CSAFPID-5907614"
                    ]
                }
            ],
            "title": "CVE-2026-1286"
        }
    ]
}