CVE-2020-15523

Published Jul 4, 2020 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
In Python 3.6 through 3.6.10, 3.7 through 3.7.8, 3.8 through 3.8.4rc1, and 3.9 through 3.9.0b4 on Windows, a Trojan horse python3.dll might be used in cases where CPython is embedded in a native application. This occurs because python3X.dll may use an invalid search path for python3.dll loading (after Py_SetPath has been used). NOTE: this issue CANNOT occur when using python.exe from a standard (non-embedded) Python installation on Windows.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-7510 In Python 3.6 through 3.6.10, 3.7 through 3.7.8, 3.8 through 3.8.4rc1, and 3.9 through 3.9.0b4 on Windows, a Trojan horse python3.dll might be used in cases where CPython is embedded in a native application. This occurs because python3X.dll may use an invalid search path for python3.dll loading (after Py_SetPath has been used). NOTE: this issue CANNOT occur when using python.exe from a standard (non-embedded) Python installation on Windows.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00884}

epss

{'score': 0.00993}

Type Values Removed Values Added
Metrics epss

{'score': 0.00511}

epss

{'score': 0.00884}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 9:34 AM
Reserved
Jul 4, 2020, 12:00 AM
Status
Modified
Published
Jul 4, 2020, 11:15 PM
Modified
Oct 14, 2026, 10:17 AM