CVE-2024-4978
Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability
What is affected
| Vendor | Justice AV Solutions |
|---|---|
| Product | Viewer |
| Weakness | CWE-506 |
The vulnerability
Justice AV Solutions (JAVS) Viewer installer contains a malicious version of ffmpeg.exe, named fffmpeg.exe (SHA256: 421a4ad2615941b177b6ec4ab5e239c14e62af2ab07c6df1741e2a62223223c4). When run, this creates a backdoor connection to a malicious C2 server.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
US federal civilian agencies were required to act by 19 June 2024 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 13 Nov 2026, 03:29. Nothing here is our own assessment. For the technical scoring, see the NVD record below.