CVE-2021-47875: Geogebra Cas Calculator

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

GeoGebra CAS Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the application by generating a large buffer overflow. Attackers can create a payload with 8000 repeated characters and paste it into the calculator's input field to trigger an application crash.

Affected products

• Geogebra Cas Calculator: version 6.0.631.0 only

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