CVE-2026-58286

Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.3

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58286	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:-:*:*:*

History

06 Jul 2026, 19:03

Type	Values Removed	Values Added
CPE		cpe:2.3:a:microsoft:edge_chromium:::::-:::*
First Time		Microsoft Microsoft edge Chromium
CWE		NVD-CWE-noinfo
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58286 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58286 - Vendor Advisory

03 Jul 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-03 21:17

Updated : 2026-07-07 04:17

NVD link : CVE-2026-58286

Mitre link : CVE-2026-58286

CVE.ORG link : CVE-2026-58286

JSON object : View

Products Affected

microsoft

edge_chromium

CWE

CWE-284

Improper Access Control

NVD-CWE-noinfo

{"id": "CVE-2026-58286", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58286", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-07T02:19:24.053785Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 5.3, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 1.6}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Microsoft Edge (Chromium-based)", "versions": [{"status": "affected", "version": "1.0.0.0", "lessThan": "150.0.4078.48", "versionType": "custom"}]}]}], "published": "2026-07-03T21:17:03.293", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58286", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-284"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network."}], "lastModified": "2026-07-07T04:17:55.037", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "48F2BF1A-3594-4AC0-B74D-FA7BF3259AC4", "versionEndExcluding": "150.0.4078.48"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}