CVE-2025-54486 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Stack Buffer Overflow in `libbiosig` MFER parsing. 💥 **Consequences**: Remote Code Execution (RCE). Critical integrity/availability loss.

Q: Root Cause? (CWE/Flaw)

🛡️ **CWE-121**: Stack-based Buffer Overflow. 🐛 **Flaw**: Unsafe memory handling in MFER format parser.

Q: Who is affected? (Versions/Components)

📦 **Product**: libbiosig (BioSig Project). 📉 **Version**: v3.9.0. 🏢 **Vendor**: The Biosig Project.

Q: What can hackers do? (Privileges/Data)

💻 **Privileges**: Arbitrary Code Execution. 📂 **Data**: Full system compromise. High Confidentiality/Integrity/Availability impact.

Q: Is exploitation threshold high? (Auth/Config)

🔓 **Threshold**: LOW. ⚙️ **Config**: Network Accessible (AV:N). No Auth (PR:N) or User Interaction (UI:N) required.

Q: Is there a public Exp? (PoC/Wild Exploitation)

📜 **Public Exp**: No PoC listed in data. 🔍 **Ref**: Talos Intelligence report available for context.

Q: How to self-check? (Features/Scanning)

🔍 **Check**: Scan for `libbiosig` v3.9.0. 🧪 **Feature**: Test MFER file parsing inputs for overflow triggers.

Q: Is it fixed officially? (Patch/Mitigation)

🩹 **Patch**: Update to fixed version. 📅 **Pub**: 2025-08-25. Check vendor site for official fix.

Q: What if no patch? (Workaround)

🚧 **Workaround**: Disable MFER parsing. 🚫 **Mitigation**: Input validation/sanitization on bio-signal files.

Q: Is it urgent? (Priority Suggestion)

🔥 **Priority**: CRITICAL. 🚨 **Urgency**: CVSS 9.8 (High). Immediate patching recommended due to RCE risk.

Updated May 06, 2026 CVSS 9.8 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Stack Buffer Overflow in `libbiosig` MFER parsing. 💥 **Consequences**: Remote Code Execution (RCE). Critical integrity/availability loss.

Q2Root Cause? (CWE/Flaw)

🛡️ **CWE-121**: Stack-based Buffer Overflow. 🐛 **Flaw**: Unsafe memory handling in MFER format parser.

Q3Who is affected? (Versions/Components)

📦 **Product**: libbiosig (BioSig Project). 📉 **Version**: v3.9.0. 🏢 **Vendor**: The Biosig Project.

Q4What can hackers do? (Privileges/Data)

💻 **Privileges**: Arbitrary Code Execution. 📂 **Data**: Full system compromise. High Confidentiality/Integrity/Availability impact.

Q5Is exploitation threshold high? (Auth/Config)

🔓 **Threshold**: LOW. ⚙️ **Config**: Network Accessible (AV:N). No Auth (PR:N) or User Interaction (UI:N) required.

Q6Is there a public Exp? (PoC/Wild Exploitation)

📜 **Public Exp**: No PoC listed in data. 🔍 **Ref**: Talos Intelligence report available for context.

Q7How to self-check? (Features/Scanning)

🔍 **Check**: Scan for `libbiosig` v3.9.0. 🧪 **Feature**: Test MFER file parsing inputs for overflow triggers.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Patch**: Update to fixed version. 📅 **Pub**: 2025-08-25. Check vendor site for official fix.

Q9What if no patch? (Workaround)

🚧 **Workaround**: Disable MFER parsing. 🚫 **Mitigation**: Input validation/sanitization on bio-signal files.

Q10Is it urgent? (Priority Suggestion)

🔥 **Priority**: CRITICAL. 🚨 **Urgency**: CVSS 9.8 (High). Immediate patching recommended due to RCE risk.

Continue exploring

Vulnerability detail Full AI analysis (login) The Biosig Project CWE-121