Vulnerability record/PUBLISHED/Published Sep 8, 2026 17:17:26 UTC

CVE-2026-69564

Heap-based buffer overflow in Windows Online Certificate Status Protocol (OCSP) allows an authorized attacker to elevate privileges locally.

Base score7.0/ 10

SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityHigh

Attack vectorLocalAV

Attack complexityHighAC

Privileges requiredLowPR

User interactionNoneUI

ScopeUnchangedS

Confidentiality impactHighC

Integrity impactHighI

Availability impactHighA

Exploit maturityUnprovenE

CVSS vector stringCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authoritymicrosoft

Last updatedOct 31, 2026 16:16:03 UTC

PublishedSep 8, 2026 17:17:26 UTC

ReservedAug 3, 2026 21:15:56 UTC