CVE-2026-88097

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges locally.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.4 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88097	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

24 Sep 2026, 20:48

Type	Values Removed	Values Added
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88097 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88097 - Vendor Advisory
First Time		Microsoft Microsoft edge Chromium
CPE		cpe:2.3:a:microsoft:edge_chromium::::::::

18 Sep 2026, 21:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-18 21:18

Updated : 2026-09-24 20:48

NVD link : CVE-2026-88097

Mitre link : CVE-2026-88097

CVE.ORG link : CVE-2026-88097

JSON object : View

Products Affected

microsoft

edge_chromium

CWE

CWE-416

Use After Free

{"id": "CVE-2026-88097", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-88097", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-19T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.4}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.1}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Microsoft Edge (Chromium-based)", "versions": [{"status": "affected", "version": "1.0.0.0", "lessThan": "153.0.4234.46", "versionType": "custom"}]}]}], "published": "2026-09-18T21:18:45.913", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88097", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges locally."}], "lastModified": "2026-09-24T20:48:00.600", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC589B45-68B5-486E-803B-D3D24650E2F2", "versionEndExcluding": "153.0.4234.46"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}