Security readout for executives and security teams
Plain-English summary
CVE-2021-47875 is reported as a crash vulnerability in GeoGebra CAS Calculator 6.0.631.0. Public sources describe denial of service from an oversized input pasted into the calculator. The business impact appears to be disruption of the application, not confirmed system takeover, despite a critical CVSS score in the record.
Executive priority
Treat as a targeted availability risk, not a confirmed enterprise compromise path. Prioritize if GeoGebra CAS Calculator 6.0.631.0 is widely deployed or used in critical learning or assessment environments.
Technical view
The advisory describes improper resource/buffer handling in GeoGebra CAS Calculator 6.0.631.0, mapped to CWE-770. The published description says a large repeated-character input can crash the application. The CVSS vector lists network, no-user-interaction, and full CIA impact, but that conflicts with the described paste-based application crash.
Likely exposure
Exposure is likely limited to systems running GeoGebra CAS Calculator 6.0.631.0. Risk is higher where users process untrusted calculator input or where application availability matters for teaching, exams, or workflows.
Exploitation context
A public ExploitDB entry exists, so proof-of-concept information is publicly available. The source bundle does not show CISA KEV listing or cited evidence of active exploitation in the wild.
Researcher notes
There is an evidence mismatch: the CVSS score implies critical remote compromise, while the narrative supports a local application denial of service. Do not assume confidentiality or integrity impact without additional vendor-confirmed detail.
Mitigation direction
- Inventory endpoints for GeoGebra CAS Calculator 6.0.631.0.
- Check GeoGebra and advisory sources for updated versions or vendor guidance.
- Avoid processing untrusted calculator input until remediation is confirmed.
- Prioritize replacement or update if GeoGebra provides a fixed release.
Validation and detection
- Confirm installed GeoGebra CAS Calculator version on managed endpoints.
- Review whether affected systems are used in availability-sensitive settings.
- Track vendor and VulnCheck pages for remediation details.
- If testing is needed, use an isolated lab and avoid production systems.
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-2021-47875 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49655CVE reference · exploit
- GeoGebra Official HomepageCVE reference · product
- VulnCheck Advisory: GeoGebra CAS 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.