CVE-2025-65715 is a vulnerability identified in the Code Runner extension version 0.12.2 for Visual Studio Code, specifically related to the code-runner.executorMap configuration setting. This setting controls how code execution commands are mapped and executed within the extension. The vulnerability allows an attacker to craft a malicious workspace configuration that, when opened by a user, triggers the execution of arbitrary code on the victim's machine. The root cause aligns with CWE-94 (Improper Control of Generation of Code), indicating that untrusted input is improperly handled and executed. Exploitation requires the victim to open a malicious workspace, thus involving user interaction, but does not require prior authentication or elevated privileges. The CVSS v3.1 score is 7.8 (high), reflecting the vulnerability's potential to compromise confidentiality, integrity, and availability of the affected system. Although no public exploits have been reported yet, the nature of the vulnerability poses a significant risk, especially in development environments where Code Runner is commonly used to execute code snippets. The vulnerability could allow attackers to execute arbitrary commands, potentially leading to full system compromise, data theft, or disruption of development workflows.

The impact of CVE-2025-65715 is substantial for organizations relying on Visual Studio Code with the Code Runner extension. Successful exploitation can lead to arbitrary code execution, allowing attackers to gain control over the affected system. This compromises confidentiality by exposing sensitive source code and credentials, integrity by enabling modification or injection of malicious code, and availability by potentially disrupting development environments or causing system crashes. Since Visual Studio Code is widely used by developers globally, the vulnerability could facilitate supply chain attacks, insertion of backdoors, or lateral movement within networks if exploited in corporate environments. The requirement for user interaction limits remote exploitation but does not eliminate risk, especially in scenarios where attackers can trick users into opening malicious workspaces via phishing or compromised repositories. The lack of a patch at the time of disclosure increases exposure, and organizations may face operational disruptions and reputational damage if exploited.

To mitigate CVE-2025-65715, organizations should implement the following specific measures: 1) Educate developers and users to avoid opening untrusted or unsolicited Visual Studio Code workspaces, especially those received via email or unknown sources. 2) Restrict or disable the Code Runner extension in environments where it is not essential, or use Visual Studio Code's extension management policies to control extension installation and execution. 3) Employ workspace trust features in Visual Studio Code to limit code execution capabilities to trusted workspaces only. 4) Monitor development environments for unusual process executions or network activity indicative of exploitation attempts. 5) Use endpoint detection and response (EDR) tools to detect and block suspicious behaviors related to code execution. 6) Stay updated with vendor advisories and apply patches promptly once available. 7) Consider sandboxing development environments or using virtual machines to isolate potential impacts. These targeted steps go beyond generic advice by focusing on controlling extension usage, workspace trust, and user behavior specific to this vulnerability.