CVE-2023-23457

PoC —

CVSS 3.1

5.5 medium

EPSS

<1%p28

Published

Jan 12, 2023 (Jan 12, 2023)

Modified

Jun 17, 2026

Description

A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.

Vendors: upx fedoraproject
Products: upx, fedora
Weakness: CWE-119
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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