# CVE-2024-4978

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.

- Page: https://www.vulneraibility.com/cve/CVE-2024-4978
- CVSS: 8.4
- Known exploited: yes, in CISA KEV since 2024-05-29; CISA due date 2024-06-19
- EPSS: 26.94% (percentile 98.1)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2024-05-30)
- Weakness: CWE-506
- Published: 2024-05-23

## Affected versions

- Justice AV Solutions Viewer: affected 8.3.7.250

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://twitter.com/2RunJack2/status/1775052981966377148
- [other] https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/
- [other] https://www.javs.com/downloads/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4978

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.