{"id":"CVE-2025-66043","title":"Several stack-based buffer overflow vulnerabilities exists in the MFER parsing functionality of The Biosig Project libbiosig 3.9.1","summary":"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 f…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-121","CWE-787"],"vendor":"libbiosig_project","product":"libbiosig","affected":["libbiosig < 3.9.2"],"patched":["libbiosig 3.9.2"],"published":"2025-12-11","updated":"2026-10-07","sourceUpdated":"2026-10-07T20:10:01.970","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-66043","references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2296","label":"talos-cna@cisco.com"},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2296","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00713,"epssPercentile":0.52083,"ingestedAt":"2026-10-07T20:46:46.854Z","slug":"CVE-2025-66043","body":"## Overview\n\nSeveral 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 3\n\n## Affected\n\n- `libbiosig < 3.9.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `libbiosig 3.9.2`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}