CVE-2025-66047
9.8 · CRITICALOverview
CVE-2025-66047 is a critical-severity vulnerability affecting libbiosig_project libbiosig. It was published on December 11, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1. A specially crafted MFER file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger these vulnerabilities.When Tag is 131
Remediation
Check the references section for vendor advisories and patches from libbiosig_project. Update libbiosig 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 |
|---|---|---|---|
| libbiosig_project | libbiosig | >= 0, < 3.9.2 | Affected |
Frequently Asked Questions
What is CVE-2025-66047?
CVE-2025-66047 is a critical-severity vulnerability affecting libbiosig_project libbiosig. It was published on December 11, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-66047?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-66047?
Check the references section for vendor advisories and patches from libbiosig_project. Update libbiosig 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-2025-66047?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-66047 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
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