CVE-2024-4978
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
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EPSS — probability of exploitation (30 days)
26.9%
97.9th percentile
CISA KEV
Listed
Added 2024-05-29 · patch by 2024-06-19
Weakness / dates
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Published — · modified —
Timeline
- 2024-05-29 — Added to CISA KEV (actively exploited)
- 2024-06-19 — CISA patch-by deadline
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.