CVE-2018-20325

CRITICALNVD 9.89.8—

9.8

There is a vulnerability in load() method in definitions/parser.py in the Danijar Hafner definitions package for Python. It can execute arbitrary python commands resulting in command execution.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 87.8%
KEV: Not listed

Published

December 21, 2018

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/danijar/definitions/issues/14
af854a3a-2127-422b-91ae-364da2661108https://github.com/danijar/definitions/issues/14

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
pip	definitions	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
definitions	0.1.0, 0.1.1, 0.2.0	—	—

Weakness Classification(1)

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

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-28 00:03 UTCEG score recompute
2026-05-28 00:03 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-20325?

CVE-2018-20325 is a critical vulnerability published on December 21, 2018. There is a vulnerability in load() method in definitions/parser.py in the Danijar Hafner definitions package for Python. It can execute arbitrary python commands resulting in command execution.

When was CVE-2018-20325 disclosed?

CVE-2018-20325 was first published in the National Vulnerability Database on December 21, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-20325 actively exploited?

CVE-2018-20325 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-20325?

CVE-2018-20325 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2018-20325?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20325, 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-2018-20325

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