CVE-2026-85899
Full vulnerability record from the local CVENow database.
Description
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network.
Severity
HIGH
CVSS score
8.1
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-10-29 16:19:45.410000
Last modified
2026-10-30 04:18:25.860000
View original CVE JSON
{
"id": "CVE-2026-85899",
"sourceIdentifier": "[email protected]",
"published": "2026-10-29T16:19:45.410",
"lastModified": "2026-10-30T04:18:25.860",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Microsoft",
"product": "Microsoft Edge (Chromium-based)",
"versions": [
{
"version": "1.0.0.0",
"lessThan": "155.0.4283.45",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-29T00:00:00+00:00",
"id": "CVE-2026-85899",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85899",
"source": "[email protected]"
}
]
}