What’s Vulnerable › Vulnerabilities

CVE-2021-47876: GeoGebra Classic 5.0.631.0-d - Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-21 · updated 2026-06-17
• Weakness: CWE-770

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.

Affected products

• GeoGebra Classic: 5.0.631.0

References

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

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