CVE-2017-15056: Upx

High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days.

p_lx_elf.cpp in UPX 3.94 mishandles ELF headers, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by an Invalid Pointer Read in PackLinuxElf64::unpack().

Affected products

• Upx Upx: version 3.94 only

Published 2017-10-06. Last modified 2026-06-17.