How severe is CVE-2019-19954?

CVE-2019-19954 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-19954 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19954?

CVE-2019-19954 affects Signal Signal-desktop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19954?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-19954 published?

CVE-2019-19954 was published on 2019-12-24 and last updated on 2026-06-17.

CVE-2019-19954

CVE-2019-19954 is a high-severity vulnerability in Signal Signal-desktop with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-427.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 6.9
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Signal Signal-desktop
Published: 2019-12-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-19954?: 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.
How severe is CVE-2019-19954?: CVE-2019-19954 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-19954 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19954?: CVE-2019-19954 affects Signal Signal-desktop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19954?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-19954 published?: CVE-2019-19954 was published on 2019-12-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:signal:signal-desktop:*:*:*:*:*:*:*:*

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CVE-2018-14023 — Medium (CVSS 4.0): Open Whisper Signal (aka Signal-Desktop) before 1.15.0-beta.10 allows information leakage.
CVE-2023-24069 — Low (CVSS 3.3): Signal Desktop before 6.2.0 on Windows, Linux, and macOS allows an attacker to obtain potentially sensitive attachments…

All CVEs affecting Signal Signal-desktop →

Other CWE-427 (Uncontrolled Search Path Element) vulnerabilities

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CVE-2019-25268 — Critical (CVSS 9.8): NREL BEopt 2.8.0.0 contains a DLL hijacking vulnerability that allows attackers to load arbitrary libraries by tricking…
CVE-2023-53959 — Critical (CVSS 9.8): FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by…
CVE-2025-65741 — Critical (CVSS 9.8): Sublime Text 3 Build 3208 or prior for MacOS is vulnerable to Dylib Injection. An attacker could compile a .dylib file…
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Browse all CWE-427 (Uncontrolled Search Path Element) vulnerabilities →