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Vulnerability record · CVE-2020-8315 · published 28 January 2020

CVE-2020-8315: Python uncontrolled search path element vulnerability

Python · Python

In Python (CPython) 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an insecure dependency load upon launch on Windows 7 may result in an attacker's copy of api-ms-win-core-path-l1-1-0.dll being loaded and used instead of the system's copy. Windows 8 and later are unaffected.

5.5 CVSS 3.1 Medium EPSS 1.5% · top 26.1% CWE-427 · Uncontrolled search path element
5.5CVSS 3.1 base score, v2 4.3
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
14 Oct 2026Last modified by NVD

Description

In Python (CPython) 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an insecure dependency load upon launch on Windows 7 may result in an attacker's copy of api-ms-win-core-path-l1-1-0.dll being loaded and used instead of the system's copy. Windows 8 and later are unaffected.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.python.org/issue39401 Issue TrackingPatchVendor Advisory
https://bugs.python.org/issue39401 Issue TrackingPatchVendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-8315), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.