CVE-2025-66047 Details
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
A stack-based buffer overflow vulnerability has been identified in The Biosig Project libbiosig version 3.9.1, specifically within the MFER (Medical waveform Format Encoding Rules) parsing functionality. This vulnerability allows for arbitrary code execution when a specially crafted MFER file is processed. The issue arises because the library fails to properly validate the length of data being read into fixed-size buffers, enabling attackers to overwrite adjacent memory on the stack.
Users are advised to update to the patched version of libbiosig, which is available on the project's official website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Dec 11, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2025-2296 | CISA-ADP | ExploitThird Party Advisory |
| https://talosintelligence.com/vulnerability_reports/TALOS-2025-2296 | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| libbiosig project libbiosig | < 3.9.2 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 17, 2025 | Initial Analysis | [email protected] |
| Dec 11, 2025 | CVE Modified | CISA-ADP |
| Dec 11, 2025 | New CVE Received | [email protected] |