CVE-2019-13404: Python

High severity, CVSS 7.8. EPSS: 1.3% chance of exploitation in the next 30 days.

The MSI installer for Python through 2.7.16 on Windows defaults to the C:\Python27 directory, which makes it easier for local users to deploy Trojan horse code. (This also affects old 3.x releases before 3.5.) NOTE: the vendor's position is that it is the user's responsibility to ensure C:\Python27 access control or choose a different directory, because backwards compatibility requires that C:\Python27 remain the default for 2.7.x

Affected products

• Python Python: up to and including 2.7.16; from 3.0.0, before 3.5.0 (fixed in 3.5.0)

Published 2019-07-08. Last modified 2026-06-17.