CVE & CISA-KEV Catalog

CVE-2020-24119

HIGH
7.1
CVSS v3
NVD

Description

A heap buffer overflow read was discovered in upx 4.0.0, because the check in p_lx_elf.cpp is not perfect.

How to fix

Remediation Available
upx-uclDebian
Fixed in:4.2.2-1CVE-2020-24119
Fixed in:4.2.2-1CVE-2020-24119

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Exploit Intelligence

1.08%probability of exploitation in 30 days
61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0160High7.5100%KEVFix
CVE-2025-5777High7.5100%KEV + RansomFix
CVE-2021-4034High7.895%KEVFix
CVE-2023-21769High7.592%-Fix
CVE-2023-49285High8.689%-Fix
CVE-2020-8794Critical9.889%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-11.