CVE-2026-21517

{"id": "CVE-2026-21517", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.0}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2026-02-10T18:16:34.110", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21517", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-59"}]}], "descriptions": [{"lang": "en", "value": "Improper link resolution before file access ('link following') in Windows App for Mac allows an authorized attacker to elevate privileges locally."}, {"lang": "es", "value": "Resoluci\u00f3n de enlaces incorrecta antes del acceso a archivos (seguimiento de enlaces) en la aplicaci\u00f3n de Windows para Mac permite a un atacante autorizado elevar privilegios localmente."}], "lastModified": "2026-02-25T14:20:17.450", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:macos:*:*", "vulnerable": true, "matchCriteriaId": "8C81186C-577F-4B6F-B6DD-FEECB522A946", "versionEndExcluding": "11.3.2"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}