CVE-2021-47877: Geogebra Graphing Calculato‪r‬

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

GeoGebra Graphing Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the application by inputting an oversized buffer. Attackers can generate a payload of 8000 repeated characters to overwhelm the input field and cause the application to become unresponsive.

Affected products

  • Geogebra Geogebra Graphing Calculato‪r‬: version 6.0.631.0 only

Published 2026-01-21. Last modified 2026-06-17.