CVE-2020-24119

HIGHNVD 7.17.1—

7.1

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

CVSS v3: 7.1
EG Score: 7.1(medium)
EPSS: 59.9%
KEV: Not listed

Published

May 14, 2021

Last Modified

April 11, 2025

References (8)

cve@mitrehttps://cwe.mitre.org/data/definitions/126.html
cve@mitrehttps://github.com/upx/upx/issues/388
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE54WKVU7MATB4WZD3MJFBAHFRJ3NTQX/
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VSQRO7YC72PSYDQG4PQLQYXZTZE3B4YV/
af854a3a-2127-422b-91ae-364da2661108https://cwe.mitre.org/data/definitions/126.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/upx/upx/issues/388
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE54WKVU7MATB4WZD3MJFBAHFRJ3NTQX/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VSQRO7YC72PSYDQG4PQLQYXZTZE3B4YV/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:45 UTCepss_batch
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2026-06-05 22:45 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch

Frequently asked(5)

What is CVE-2020-24119?

CVE-2020-24119 is a high vulnerability published on May 14, 2021. A heap buffer overflow read was discovered in upx 4.0.0, because the check in plxelf.cpp is not perfect.

When was CVE-2020-24119 disclosed?

CVE-2020-24119 was first published in the National Vulnerability Database on May 14, 2021, with the most recent update on April 11, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-24119 actively exploited?

CVE-2020-24119 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 59.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-24119?

CVE-2020-24119 has a CVSS v3 base score of 7.1 (NVD).

How do I remediate CVE-2020-24119?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-24119, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-24119

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Is Your Infrastructure Affected by CVE-2020-24119?

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Frequently asked(5)

What is CVE-2020-24119?

CVE-2020-24119 is a high vulnerability published on May 14, 2021. A heap buffer overflow read was discovered in upx 4.0.0, because the check in plxelf.cpp is not perfect.

When was CVE-2020-24119 disclosed?

Is CVE-2020-24119 actively exploited?

What is the CVSS score of CVE-2020-24119?

CVE-2020-24119 has a CVSS v3 base score of 7.1 (NVD).

How do I remediate CVE-2020-24119?

CVE-2020-24119

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-24119?

CVE-2020-24119

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-24119?

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References (8)

Frequently asked(5)

Published

Last Modified

References (8)

Frequently asked(5)

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