CVE-2021-30500

PoC —

CVSS 3.1

7.8 high

EPSS

1%p67

Published

May 27, 2021 (May 27, 2021)

Modified

Jun 17, 2026

Description

Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.

Vendors: upx redhat fedoraproject
Products: upx, enterprise linux, fedora
Weakness: CWE-476
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.2%)

In the news0 stories

No ingested article mentions this CVE yet.