CVE-2019-20053

PoC —

CVSS 3.1

5.5 medium

EPSS

1%p67

Published

Dec 27, 2019 (Dec 27, 2019)

Modified

Jun 17, 2026

Description

An invalid memory address dereference was discovered in the canUnpack function in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

Vendors: upx opensuse
Products: upx, backports, leap
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 (1.2%)

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