CVE-2026-57978

{"id": "CVE-2026-57978", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Microsoft Edge (Chromium-based)", "versions": [{"status": "affected", "version": "1.0.0.0", "lessThan": "150.0.4078.99", "versionType": "custom"}]}]}], "published": "2026-07-26T18:18:23.780", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57978", "source": "secure@microsoft.com"}], "vulnStatus": "Received", "weaknesses": [{"type": "Primary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-346"}]}], "descriptions": [{"lang": "en", "value": "Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network."}], "lastModified": "2026-07-26T18:18:23.780", "sourceIdentifier": "secure@microsoft.com"}