CVE-2024-3209
CVSS v3
9.8
CRITICAL
EPSS Score
1.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A vulnerability was found in UPX up to 4.2.2. It has been rated as critical. This issue affects the function get_ne64 of the file bele.h. The manipulation leads to heap-based buffer overflow. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-259055. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Technical details
- Published
- 2024-04-02
Frequently asked questions
What is CVE-2024-3209?
A vulnerability was found in UPX up to 4.2.2. It has been rated as critical. This issue affects the function get_ne64 of the file bele.h. The manipulation leads to heap-based buffer overflow. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-259055. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Is CVE-2024-3209 actively exploited?
Active exploitation of CVE-2024-3209 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2024-3209?
CVE-2024-3209 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2024-3209 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2024 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).