Security readout for executives and security teams
Plain-English summary
CVE-2021-46006 is an unauthenticated settings-change issue in Totolink A3100R firmware V5.9c.4577. Someone who can reach the device management interface may be able to change multiple router settings without signing in. The source bundle does not name a patch or confirm exploitation.
Executive priority
Treat as a high-priority network device exposure if affected routers are deployed, especially where administration is reachable beyond trusted networks. Business urgency is driven by possible unauthenticated configuration changes, not by confirmed exploitation evidence.
Technical view
The reported vulnerable component is test.asp, described as containing an API-like function that lacks authentication. The CVE states this function can configure multiple settings. No CVSS score, CWE, CPE, patch version, or detailed impact scope is provided in the bundle.
Likely exposure
Exposure appears limited to Totolink A3100R devices running V5.9c.4577 where the management interface is reachable. Internet-facing administration would raise risk, but reachability is not described in the sources.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source confirms active exploitation. Public technical detail exists through the referenced HackMD page, but this analysis does not provide exploitation steps.
Researcher notes
The record is sparse: severity, CVSS, CWE, CPE, and fixed versions are absent. The key source-grounded claim is unauthenticated access to a test.asp API-like function allowing multiple configuration changes on A3100R V5.9c.4577.
Mitigation direction
- Identify Totolink A3100R devices and firmware versions in inventory.
- Restrict router administration access to trusted management networks only.
- Check Totolink guidance for fixed firmware or vendor mitigations.
- Replace or isolate affected devices if no vendor fix is available.
- Review configuration for unexpected changes.
Validation and detection
- Confirm whether any A3100R device runs firmware V5.9c.4577.
- Verify management interfaces are not exposed to untrusted networks.
- Check vendor advisories or support channels for remediation status.
- Review device logs and settings for unauthorized configuration changes.
- Document compensating controls for any device that cannot be updated.
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.
CVE-2021-46006 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.
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://hackmd.io/vS-OfUEzSqqKh8e1PKce5ACVE reference, mitre
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.