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TI-2021-22490 Aliases CVE-2021-47876GHSA-fqhq-3xgh-rx7h

GeoGebra Classic 5.0.631.0-d - Denial of Service

Priority MEDIUM 63CWE-770Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00283 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GeoGebraGeoGebra Classic5.0.631.0—No fix listedCNA
  • GeoGebra Classic VendorGeoGebra Affected 5.0.631.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47876
  2. 2026-10-03 Alias added: GHSA-fqhq-3xgh-rx7h

References

Exploit 1

Other 1

  • TI-2021-22491 GeoGebra Graphing Calculato‪r‬ 6.0.631.0 - Denial Of Service CVSS 4.0MEDIUM 6.7
  • TI-2021-22489 GeoGebra CAS Calculator 6.0.631.0 - Denial of Service CVSS 4.0MEDIUM 4.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences