CVE-2026-26134

{"id": "CVE-2026-26134", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2026-03-10T18:18:42.803", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26134", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-190"}, {"lang": "en", "value": "CWE-416"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "Integer overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally."}, {"lang": "es", "value": "Desbordamiento de entero o ajuste circular en Microsoft Office permite a un atacante autorizado elevar privilegios localmente."}], "lastModified": "2026-05-22T14:49:53.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "C63C528F-6E13-4B70-AEFC-CA9D3A8DE9A1", "versionEndExcluding": "16.0.19822.20000"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}