CVE-2021-47876

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.exploit-db.com/exploits/49654
https://www.geogebra.org
https://www.vulncheck.com/advisories/geogebra-classic-d-denial-of-service

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) GeoGebra Classic 5.0.631.0-d contiene una vulnerabilidad de denegación de servicio en el campo de entrada que permite a los atacantes bloquear la aplicación enviando contenido de búfer sobredimensionado. Los atacantes pueden generar un búfer grande de 800.000 caracteres repetidos y pegarlo en el campo de entrada 'Entrada:' para provocar la caída de la aplicación.

21 Jan 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-21 18:16

Updated : 2026-04-15 00:35

NVD link : CVE-2021-47876

Mitre link : CVE-2021-47876

CVE.ORG link : CVE-2021-47876

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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