Vulnerability · Published Jan 21, 2026 · Assigned by VulnCheck
CVE-2021-47875GeoGebra CAS Calculator 6.0.631.0 - Denial of Service
Critical 9.8
In plain English
A critical-severity resource allocation without limits in CAS Calculator from GeoGebra. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 64.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| GeoGebra | CAS Calculator | 6.0.631.0 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-49655 exploit
- GeoGebra Official Homepage product
- VulnCheck Advisory: GeoGebra CAS Calculator 6.0.631.0 - Denial of Service third-party-advisory