CVE-2024-4978
CISA KEV
ACT NOW
Priority: 0.00
BB Relevance:
5/100
Published: N/A
Modified: N/A
First seen: 2026-10-29
Status: pending_score
Description
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.
CISA Known Exploited Vulnerability
Vendor / Product
Justice AV Solutions — Viewer
Date Added
2024-05-29
Remediation Due
2024-06-19
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