Is this vulnerability remotely exploitable?

It can be exploited remotely in the sense that an attacker only needs to deliver a malicious Markdown file (for example via email, repository, or shared drive) and convince the victim to open it in VS Code with the vulnerable extension enabled; no direct network access to the victim's machine is required.

What level of access does an attacker need to exploit this?

The attacker needs the ability to provide or influence a Markdown file that the victim opens with Markdown Preview Enhanced v0.8.18. They do not need prior access to the victim's system or VS Code environment, but exploitation depends on user interaction.

What is the safest general fix pattern for developers of similar extensions?

Do not execute or evaluate any content that originates from documents. Replace dynamic evaluation and command construction with strictly defined rendering logic, ensure all document-derived data is treated as plain text, and isolate any necessary execution in a constrained sandbox with minimal privileges.

Severity:

HIGH RISK

(8.8)

Code Injection (CWE-94) in VS Code Extension Markdown Preview Enhanced

CVE-2025-65716

Published:

Feb 16, 2026

Status:

Received

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Code Injection

CWE:

CWE-94

Impact:

Arbitrary Code Execution on Developer Workstations

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Code Injection

CWE:

CWE-94

Impact:

Arbitrary Code Execution on Developer Workstations

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Ask AI for summary of CodeAnt

Code Injection (CWE-94) in VS Code Extension Markdown Preview Enhanced

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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