CVE-2025-12121
7.3 · HIGHOverview
CVE-2025-12121 is a high-severity vulnerability affecting lite-xl lite_xl. It was published on November 20, 2025 and has a CVSS 3.1 base score of 7.3 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Lite XL versions 2.1.8 and prior contain a vulnerability in the system.exec function, which allowed arbitrary command execution through unsanitized shell command construction. This function was used in project directory launching (core.lua), drag-and-drop file handling (rootview.lua), and the “open in system” command in the treeview plugin (treeview.lua). If an attacker could influence input to system.exec, they might execute arbitrary commands with the privileges of the Lite XL process.
Remediation
Check the references section for vendor advisories and patches from lite-xl. Update lite_xl to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| lite-xl | lite_xl | 0 | Affected |
Frequently Asked Questions
What is CVE-2025-12121?
CVE-2025-12121 is a high-severity vulnerability affecting lite-xl lite_xl. It was published on November 20, 2025 and has a CVSS 3.1 base score of 7.3 (HIGH).
How severe is CVE-2025-12121?
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-12121?
Check the references section for vendor advisories and patches from lite-xl. Update lite_xl to the latest patched version. 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-2025-12121?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-12121 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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