High severity7.5NVD Advisory· Published Jan 21, 2026· Updated Apr 15, 2026

CVE-2021-47876

Description

GeoGebra Classic 5.0.631.0-d contains a denial of service vulnerability in the input field that allows attackers to crash the application by sending oversized buffer content. Attackers can generate a large buffer of 800,000 repeated characters and paste it into the 'Entrada:' input field to trigger an application crash.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.exploit-db.com/exploits/49654nvd
www.geogebra.orgnvd
www.vulncheck.com/advisories/geogebra-classic-d-denial-of-servicenvd

News mentions

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