CVE-2024-4978 KEV
8.4
HIGH · CVSS 3.1 · EPSS 26.9% (pctl 98)
Patch first
On CISA KEV — known exploited in the wild, due 2024-06-19.
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.
Scoring
| CVSS | 8.4 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H |
| EPSS | 26.94% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-506 |
| On CISA KEV | yes — remediate by 2024-06-19 |
| Public exploit | none known |
| Published | 2024-05-23 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability |
|---|---|
| Added | 2024-05-29 |
| Due | 2024-06-19 |
| Vendor / product | Justice AV Solutions / Viewer |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| javs | javs viewer |
References
- https://twitter.com/2RunJack2/status/1775052981966377148
- https://www.javs.com/downloads/
- https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/
- https://twitter.com/2RunJack2/status/1775052981966377148
- https://www.javs.com/downloads/
- https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4978
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