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

- Exploited (CISA KEV): yes, added 2024-05-29
- Published: 2024-05-23
- CVSS: 8.7 HIGH (v4.0)
- EPSS: 26.9% (98th percentile)
- CWE: CWE-506

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.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2024-4978 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2024-4978