CVE-2021-47875 — AI Deep Analysis Summary

🚨 **Essence**: Buffer Overflow in input fields of GeoGebra CAS Calculator. 💥 **Consequences**: Application crash (Denial of Service). Data integrity is also at risk per CVSS.

🛡️ **Root Cause**: CWE-770 (Allocation of Resources Without Limits or Throttling). Specifically, a **Buffer Overflow** triggered by malicious input in the calculator's fields.

📦 **Affected**: GeoGebra CAS Calculator. 📅 **Version**: 6.0.631.0. 🏢 **Vendor**: GeoGebra (USA).

🔓 **Impact**: High severity (CVSS 3.1). Hackers can achieve **Complete** Confidentiality, Integrity, and Availability impact. Essentially: Crash the app + potential data compromise.

⚡ **Threshold**: LOW. CVSS Vector: `AV:N/AC:L/PR:N/UI:N`. No privileges, no user interaction, and network-accessible. Easy to trigger.

💣 **Exploit**: Yes. Public PoC available on **ExploitDB (ID: 49655)**. Wild exploitation is possible given the low barrier to entry.

🔍 **Check**: Scan for GeoGebra CAS Calculator v6.0.631.0. Look for input fields in the CAS interface that accept excessive data. Use VulnCheck advisory for specific DoS indicators.

🩹 **Fix**: The data lists a publication date of 2026, implying a future or hypothetical scenario in this context. However, standard practice is to update to the latest version from the **Official Homepage**.

🚧 **Workaround**: If unpatched, **disable network access** to the calculator. Restrict input validation or sandbox the application to prevent buffer overflow execution.

🔥 **Urgency**: CRITICAL. With `PR:N` (No Privileges) and `UI:N` (No Interaction), this is a high-priority fix. Patch immediately to prevent DoS and data loss.