CVE & CISA-KEV Catalog

CVE-2020-15523

HIGH
7.8
CVSS v3
NVD

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.

How to fix

Remediation Available
Python 2Windows application
Affected:3.5.0 3.5.10Fixed in:3.5.10Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Python 3.10Windows application
Affected:3.5.0 3.5.10Fixed in:3.5.10Python Software Foundation
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Python 3.11Windows application
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.5.0 3.5.10Fixed in:3.5.10Python Software Foundation
Python 3.12Windows application
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.5.0 3.5.10Fixed in:3.5.10Python Software Foundation
Python 3.8Windows application
Affected:3.5.0 3.5.10Fixed in:3.5.10Python Software Foundation
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Python 3.9Windows application
Affected:3.5.0 3.5.10Fixed in:3.5.10Python Software Foundation
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation

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
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.90%probability of exploitation in 30 days
55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Related Vulnerabilities

Other CWE-427 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-27955Critical9.883%--
CVE-2017-6517Critical9.846%--
CVE-2020-3153Medium6.528%KEV + RansomFix
CVE-2024-48990High7.820%-Fix
CVE-2019-9491High7.813%--
CVE-2020-3433High7.810%KEV + RansomFix
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CVE-2020-15523 severity badge

Markdown

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HTML

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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 2024-11-21.