CVE-2021-47877

GeoGebra Graphing Calculato‪r‬ 6.0.631.0 - Denial Of Service

CVSS 6.7 MEDIUMEPSS 0.2%CWE-770

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.7EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

GeoGebra · GeoGebra Graphing Calculato‪r‬

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References

https://www.exploit-db.com/exploits/49653 https://www.geogebra.org https://www.vulncheck.com/advisories/geogebra-graphing-calculator-denial-of-service