CVE-2021-47875

CRITICAL

GeoGebra CAS Calculator <6.0.631.0 - DoS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47875. PoCs published by Brian Rodriguez.

AI-analyzed exploit summary This exploit generates a large buffer of 'A' characters to trigger a denial-of-service (DoS) in GeoGebra CAS Calculator 6.0.631.0 by overwriting memory when pasted into the input field. The PoC is straightforward and demonstrates a buffer overflow vulnerability.

Description

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.

Exploits (1)

exploitdb WORKING POC
by Brian Rodriguez · pythonlocalwindows
https://www.exploit-db.com/exploits/49655

This exploit generates a large buffer of 'A' characters to trigger a denial-of-service (DoS) in GeoGebra CAS Calculator 6.0.631.0 by overwriting memory when pasted into the input field. The PoC is straightforward and demonstrates a buffer overflow vulnerability.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: GeoGebra CAS Calculator 6.0.631.0-offlinecas
No auth needed
Prerequisites: GeoGebra CAS Calculator 6.0.631.0 installed on Windows · Ability to run Python script to generate payload · Access to paste payload into the application's input field
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/49655
Various Sources product
https://www.geogebra.org

Scores

CVSS v3 9.8
EPSS 0.0035
EPSS Percentile 26.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (1)
GeoGebra/CAS Calculator 6.0.631.0
Published Jan 21, 2026
Tracked Since Feb 18, 2026