CVE-2026-74801
High · 8.2CVSS
8.2
EPSS
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Published
Aug 17, 2026
CISA due date
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The record
SiYuan before 3.7.4 fails to properly escape workspace directory paths when constructing command-line arguments for the elevated elevator.exe helper process. Attackers can create a malicious workspace directory with command metacharacters in its path and trigger the Microsoft Defender exclusion flow to execute arbitrary commands with administrator privileges after UAC approval.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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