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CVE-2020-16977

7.0 · HIGH

<p>A remote code execution vulnerability exists in Visual Studio Code when the Python extension loads a Jupyter notebook file.

Published Oct 16, 2020EPSS 3.35%

Overview

CVE-2020-16977 is a high-severity vulnerability. It was published on October 16, 2020 and has a CVSS 3.1 base score of 7.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

<p>A remote code execution vulnerability exists in Visual Studio Code when the Python extension loads a Jupyter notebook file. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p>

<p>To exploit this vulnerability, an attacker would need to convince a target to open a specially crafted file in Visual Studio Code with the Python extension installed.</p>

<p>The update addresses the vulnerability by modifying the way Visual Studio Code Python extension renders notebook content.</p>

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16977Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16977

How CyberStrike helps

Frequently asked questions

What is CVE-2020-16977?

CVE-2020-16977 is a high-severity vulnerability. It was published on October 16, 2020 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2020-16977?

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-16977?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-16977?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-16977 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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