Security readout for executives and security teams
Plain-English summary
CVE-2021-37446 is an authenticated file-read issue in NCH Quorum v2.03 and earlier. A logged-in user may be able to read files through directory traversal in a document property request. Business risk depends on whether the legacy Quorum service exists, who can log in, and what sensitive files are reachable.
Executive priority
Treat this as a targeted legacy-software risk. Prioritize confirmation of exposure and access restrictions before broader emergency action, unless Quorum is internet-facing or accessible to untrusted users.
Technical view
The CVE describes directory traversal in NCH Quorum v2.03 and earlier through the document property file handling path, allowing authenticated file reading. The sources do not provide CVSS, CWE, affected CPEs, or a vendor-named fixed version. A public proof-of-concept reference is listed, but KEV status is false.
Likely exposure
Exposure is most likely in organizations still running NCH Quorum v2.03 or earlier. Risk is higher when the Quorum web interface is internet-accessible, shared with many users, or used in environments where local files may contain credentials, recordings, configuration, or operational data.
Exploitation context
The CVE requires authenticated access according to the public record. A public GitHub proof-of-concept reference exists, but the provided sources do not show active exploitation, and this CVE is not listed as KEV in the bundle.
Researcher notes
Evidence is sparse: no CVSS, CWE, CPE, patch version, or vendor advisory is included in the provided bundle. The core claim is authenticated directory traversal leading to file read in NCH Quorum v2.03 and earlier.
Mitigation direction
- Inventory systems for NCH Quorum v2.03 and earlier.
- Check NCH guidance; sources do not name a fixed version.
- Restrict Quorum access to trusted networks and users.
- Remove unnecessary Quorum accounts and review privileges.
- Consider retiring unsupported or obsolete deployments.
Validation and detection
- Confirm whether NCH Quorum is deployed anywhere in the environment.
- Record installed Quorum versions and exposure paths.
- Review web access logs for suspicious document property requests.
- Verify authentication boundaries around the Quorum interface.
- Assess whether sensitive local files are reachable from the service account.
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.
File access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-37446 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/0xfml/poc/blob/main/NCH/Quorum_2.03_LFI.mdCVE reference · x_refsource_MISC
- https://www.nch.com.au/conference/index.htmlCVE reference · x_refsource_MISC
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.