Security readout for executives and security teams
Plain-English summary
CVE-2021-41737 is a denial-of-service issue in Faust 2.23.1. A specially crafted Faust input can consume stack resources and make the process unavailable. The public record does not identify broader affected products, a fixed version, or active exploitation.
Executive priority
Treat as a targeted availability risk for environments that expose Faust processing to untrusted input. Prioritize quickly if Faust is internet-facing or part of customer-submitted content workflows; otherwise handle through normal dependency remediation.
Technical view
The CVE describes stack consumption in Faust 2.23.1 triggered by malformed input processed by Faust. It is classified as CWE-674 and scored CVSS 7.5 for availability impact only. The source bundle lists no CPEs and no explicit remediation version.
Likely exposure
Exposure is most likely where Faust 2.23.1 processes untrusted or user-supplied Faust source, including build systems, web services, teaching platforms, or automation pipelines. Systems using Faust only with trusted local files have lower practical exposure.
Exploitation context
The bundle marks this CVE as not in KEV and provides no cited evidence of active exploitation. The CVSS vector indicates remote, unauthenticated availability impact, but exploit maturity and real-world targeting are not established by the supplied sources.
Researcher notes
Evidence is limited. The CVE record names Faust 2.23.1 and stack consumption, but affected CPEs, fixed version, and exploit status are not provided. Use the GitHub issue and referenced repository tree as primary leads for root-cause and patch validation.
Mitigation direction
- Inventory Faust usage and confirm whether version 2.23.1 is present.
- Check Faust project guidance for fixed releases or recommended commits.
- Avoid processing untrusted Faust input until remediation is confirmed.
- Run Faust processing in isolated, resource-limited environments.
- Monitor the referenced GitHub issue for maintainer guidance.
Validation and detection
- Identify services, CI jobs, or tools that invoke Faust.
- Confirm whether any workflow accepts external Faust source files.
- Verify installed Faust versions against the affected 2.23.1 record.
- Review monitoring for crashes or stack exhaustion in Faust processes.
- Track remediation status against official Faust references.
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-674: 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-2021-41737 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
- https://github.com/grame-cncm/faust/issues/653CVE reference
- https://github.com/grame-cncm/faust/tree/e682dbeeb7cc0ec9a1fcb6872f53433e454aa233CVE reference
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.
Uncontrolled Recursion
Uncontrolled Recursion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.