What’s Vulnerable › Vulnerabilities

CVE-2019-19954

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-12-24 · updated 2026-06-17
• Weakness: CWE-427

Description

Signal Desktop before 1.29.1 on Windows allows local users to gain privileges by creating a Trojan horse %SYSTEMDRIVE%\node_modules\.bin\wmic.exe file.

Affected products

• Signal-Desktop: before 1.29.1 — fixed in 1.29.1

How to fix

Upgrade to a fixed version: Signal-Desktop 1.29.1. Check the vendor advisory for mitigations.

References

• https://blog.mirch.io/2019/12/18/signal-desktop-windows-lpe/
• https://github.com/signalapp/Signal-Desktop/commit/2da39cca673cc11be3c6d70d4fb95889f9ab6688
• https://blog.mirch.io/2019/12/18/signal-desktop-windows-lpe/
• https://github.com/signalapp/Signal-Desktop/commit/2da39cca673cc11be3c6d70d4fb95889f9ab6688

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