What’s Vulnerable › Vulnerabilities

CVE-2024-4978: Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2024-05-29
• EPSS: 26.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-05-23 · updated 2026-06-17
• Weakness: CWE-506

Description

Justice AV Solutions Viewer Setup 8.3.7.250-1 contains a malicious binary when executed and is signed with an unexpected authenticode signature. A remote, privileged threat actor may exploit this vulnerability to execute of unauthorized PowerShell commands.

Affected products

• Justice AV Solutions Viewer: 8.3.7.250

References

• https://twitter.com/2RunJack2/status/1775052981966377148
• https://www.javs.com/downloads/
• https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/
• https://twitter.com/2RunJack2/status/1775052981966377148
• https://www.javs.com/downloads/
• https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4978

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