What is CVE-2020-17163?

CVE-2020-17163 is a high-severity vulnerability in Microsoft Python. CVSS score: 7.8/10. Published 2023-12-29.

How severe is CVE-2020-17163?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Microsoft Python

CVE-2020-17163

Visual Studio Code Python Extension Remote Code Execution Vulnerability

Published 2023-12-29 · last modified 2026-08-19.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.9th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Microsoft Python
Microsoft Python Extension For Visual Studio Code — versions 2020

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17163 (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-17163?: CVE-2020-17163 is a high-severity vulnerability in Microsoft Python. CVSS score: 7.8/10. Published 2023-12-29.
How severe is CVE-2020-17163?: High severity. CVSS v3 base score is 7.8 out of 10.