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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-21223",
        "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "state": "PUBLISHED",
        "assignerShortName": "microsoft",
        "dateReserved": "2025-12-11T21:02:05.732Z",
        "datePublished": "2026-01-16T21:28:30.158Z",
        "dateUpdated": "2026-07-30T20:47:30.062Z"
    },
    "containers": {
        "cna": {
            "title": "Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability",
            "datePublic": "2026-01-16T16:00:00.000Z",
            "cpeApplicability": [
                {
                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
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                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "1.0.0.0",
                                    "versionEndExcluding": "144.0.3719.82"
                                }
                            ]
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Microsoft",
                    "product": "Microsoft Edge (Chromium-based)",
                    "versions": [
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                            "version": "1.0.0.0",
                            "lessThan": "144.0.3719.82",
                            "versionType": "custom",
                            "status": "affected"
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            "descriptions": [
                {
                    "value": "Improper privilege management in Microsoft Edge (Chromium-based) allows an authorized attacker to bypass a security feature locally.",
                    "lang": "en-US"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "description": "CWE-269: Improper Privilege Management",
                            "lang": "en-US",
                            "type": "CWE",
                            "cweId": "CWE-269"
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                "dateUpdated": "2026-07-30T20:47:30.062Z"
            },
            "references": [
                {
                    "name": "Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability",
                    "tags": [
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                        "patch"
                    ],
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21223"
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                            "lang": "en-US",
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                        "version": "3.1",
                        "baseSeverity": "HIGH",
                        "baseScore": 7.1,
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C"
                    }
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        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.1,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                            "integrityImpact": "LOW",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "LOW"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-21223",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-01-21T04:55:21.514844Z"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-02-26T14:44:46.346Z"
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