Exploit for Reliance on Untrusted Inputs in a Security Decision in Microsoft_3AA7C100-914A-59C6-BE72-E229D8D796F3

{
    "lastseen": "2026-02-04T15:13:56",
    "description": "Detections for the CVE-2026-21509 vulnerability in MS Office This repository contains a YARA rule to detect RTF documents with a potential exploit for CVE-2026-21509, and a Python script to check if MS Office files contain Shell.Explorer.1 OLE objects,...",
    "published": "2026-02-04T14:13:02",
    "modified": "2026-02-04T15:12:12",
    "type": "githubexploit",
    "title": "Exploit for Reliance on Untrusted Inputs in a Security Decision in Microsoft",
    "source": "",
    "references": "",
    "id": "3AA7C100-914A-59C6-BE72-E229D8D796F3",
    "bulletinFamily": "exploit",
    "cwe": null,
    "cvelist": [
        "CVE-2021-40444",
        "CVE-2026-21509"
    ],
    "sourceData": "",
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    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L",
        "version": "3.1"
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        "cvssV3": {
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    },
    "href": "https://github.com/decalage2/detect_CVE-2026-21509",
    "category_name": "Exploit",
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