CVE-2024-4978
Malicious Code in Justice AV Solutions (JAVS) Viewer
Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA notes
Please follow the vendor’s instructions as outlined in the public statements at https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack#remediation and https://www.javs.com/downloads; https://nvd.nist.gov/vuln/detail/CVE-2024-4978
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.
Severity
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:HCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HExploitation Context
as of October 14, 2026- CISA added CVE-2024-4978 to the KEV catalog 6 days after its CVE record was published. The median for entries added in 2024 is 21.5 days.
- Its current EPSS score (26.9%) is higher than that of 39% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Justice AV Solutions | Justice AV Solutions Viewer | 8.3.7.250 |
References
3 LinksRecord Details
Related
Tool categories
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.