Cyber Risks November 13, 2026 · Zero Day Initiative

ZDI-26-971: Signal for Windows Insufficient UI Warning Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Signal for Windows. User interaction is required to exploit this vulnerability in that the target must accept a malicious attachment. The ZDI has assigned a CVSS rating of 7.5.

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Topics

Vulnerabilities & Patching

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