CVE-2026-83720: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
0
HighPublished: 10/13/2026 (10/13/2026, 19:00:52 UTC)
Source: CVE Database V5
Vendor/Project: Microsoft
Product: Windows 11 version 26H1
Description
Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected software
Microsoft
Windows 11 version 26H1
Affected versions
>=10.0.28000.0 <10.0.28000.3231
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-31T22:49:39.364Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83720","vendor":"Microsoft"}]
Threat ID: 6ace85052cdf04f6569f28ae
Added to database: 10/13/2026, 19:22:45 UTC
Last updated: 10/13/2026, 22:50:42 UTC
Views: 2
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