Security readout for executives and security teams
Plain-English summary
CVE-2021-47877 is a denial-of-service issue in GeoGebra Graphing Calculator 6.0.631.0. A specially large input can make the application unresponsive. The main business impact is disruption for users relying on this educational or calculation tool, not data theft or system takeover based on available sources.
Executive priority
Prioritize remediation where GeoGebra is widely deployed or supports classroom, lab, or business workflows. This is an availability risk with public exploit information, but current sources do not indicate data compromise, privilege escalation, or active exploitation.
Technical view
The vulnerability is reported as CWE-770, resource allocation without limits or throttling. Sources describe oversized input overwhelming an input field and crashing or freezing GeoGebra Graphing Calculator 6.0.631.0. CVSS 3.1 is 7.5 with availability impact only. No confidentiality or integrity impact is stated.
Likely exposure
Exposure appears limited to environments running GeoGebra Graphing Calculator 6.0.631.0. Organizations using managed desktops, classrooms, labs, or kiosk-style systems should check installed versions. The sources do not identify other affected versions or platforms.
Exploitation context
A public ExploitDB entry exists, so proof-of-concept information is publicly available. CISA KEV is false in the provided data, and no cited source states active exploitation. Available reporting describes application denial of service rather than code execution.
Researcher notes
Evidence is sparse and centers on a third-party advisory and ExploitDB entry. The CVSS vector says network exploitable with no user interaction, while the description references an application input field. Validate the affected build and vendor status before broad conclusions.
Mitigation direction
- Inventory systems for GeoGebra Graphing Calculator 6.0.631.0.
- Check GeoGebra guidance for fixed versions or official remediation.
- Upgrade or replace affected installations if a fixed release is available.
- Remove the affected version where the application is not business-required.
- Limit use on shared or kiosk systems until remediation is confirmed.
Validation and detection
- Confirm whether GeoGebra Graphing Calculator 6.0.631.0 is installed.
- Review software management records for GeoGebra deployment scope.
- Check vendor release notes or support channels for fixed versions.
- Verify remediated endpoints no longer run the affected version.
- Document any exceptions and compensating operational controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-770: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-47877 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49653CVE reference · exploit
- GeoGebra Official HomepageCVE reference · product
- VulnCheck Advisory: GeoGebra Graphing Calculator 6.0.631.0 - Denial Of ServiceCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.