Vulnerability · Published Jan 21, 2026 · Assigned by VulnCheck
CVE-2021-47877GeoGebra Graphing Calculator 6.0.631.0 - Denial Of Service
High 7.5
In plain English
A high-severity resource allocation without limits in GeoGebra Graphing Calculator from GeoGebra. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 79.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| GeoGebra | GeoGebra Graphing Calculator | 6.0.631.0 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-49653 exploit
- GeoGebra Official Homepage product
- VulnCheck Advisory: GeoGebra Graphing Calculator 6.0.631.0 - Denial Of Service third-party-advisory