CVE-2025-1866
Overview
CVE-2025-1866 is a known-severity vulnerability. It was published on March 3, 2025.
Technical Description
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows Pointer Manipulation, potentially leading to out-of-bounds memory access. This issue affects libwebsockets before 4.3.4 and is present in code built specifically for the Win32 platform.
By default, the affected code is not executed unless one of the following conditions is met:
LWS_WITHOUT_EXTENSIONS (default ON) is manually set to OFF in CMake.
LWS_WITH_HTTP_STREAM_COMPRESSION (default OFF) is manually set to ON in CMake.
Despite these conditions, when triggered in affected configurations, this vulnerability may allow attackers to manipulate pointers, potentially leading to memory corruption or unexpected behavior.
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.
Frequently Asked Questions
What is CVE-2025-1866?
CVE-2025-1866 is a known-severity vulnerability. It was published on March 3, 2025.
How severe is CVE-2025-1866?
CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.
How do I fix or remediate CVE-2025-1866?
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-2025-1866?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-1866 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.
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