CVE-2026-83505
HIGH
7,0
Source: [email protected]
Attack Vector: local
Attack Complexity: high
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
Time-of-check time-of-use (toctou) race condition in Windows Setup Files Cleanup allows an authorized attacker to elevate privileges locally.
367
Time-of-check Time-of-use (TOCTOU) Race Condition
IncompleteCommon Consequences
Security Scopes Affected:
Integrity
Other
Non-Repudiation
Potential Impacts:
Alter Execution Logic
Unexpected State
Modify Application Data
Modify Files Or Directories
Modify Memory
Other
Hide Activities
Applicable Platforms
All platforms may be affected
426
Untrusted Search Path
StableCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Availability
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity
Execute Unauthorized Code Or Commands
Dos: Crash, Exit, Or Restart
Read Files Or Directories
Applicable Platforms
All platforms may be affected
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83505