Security readout for executives and security teams
Plain-English summary
CVE-2021-46455 is a command injection issue reported in D-Link DIR-823-Pro v1.0.2. In business terms, a vulnerable router could allow an attacker to run unintended system commands if they can reach the affected function. The source bundle does not provide CVSS, confirmed affected CPEs, or clear patch details.
Executive priority
Treat this as a high-priority edge-device exposure review, not a confirmed emergency. The potential impact is serious because routers sit at network boundaries, but the evidence provided lacks CVSS, KEV listing, and confirmed patch details.
Technical view
The CVE description states that SetStationSettings in D-Link DIR-823-Pro v1.0.2 accepts the station_access_enable parameter in a way that can allow arbitrary command execution. The provided metadata lists no CWE, CVSS score, or normalized affected-product entry, so technical scope and prerequisites remain incomplete.
Likely exposure
Exposure appears limited to environments running D-Link DIR-823-Pro v1.0.2. Risk is higher where router administration or affected interfaces are reachable from untrusted networks. The source bundle does not confirm other versions, regions, models, or cloud-managed variants.
Exploitation context
CISA KEV status is false, and the provided sources do not establish active exploitation in the wild. A public researcher reference is listed, indicating technical disclosure exists, but this analysis does not rely on or reproduce exploit details.
Researcher notes
Key gaps are prerequisites, authentication context, vulnerable endpoint exposure, supported firmware status, and precise remediation. The CVE record names the parameter and function, but normalized affected-product data is absent. Use vendor material before broad claims about affected populations.
Mitigation direction
- Identify any D-Link DIR-823-Pro devices and record firmware versions.
- Check D-Link bulletin SAP10285 and the D-Link security bulletin for vendor guidance.
- Restrict router management access to trusted administrative networks only.
- Replace or update affected devices if D-Link identifies supported remediation.
- Monitor router configuration changes and unexpected administrative activity.
Validation and detection
- Confirm whether DIR-823-Pro v1.0.2 exists in asset inventory.
- Verify management interfaces are not exposed to the public internet.
- Review D-Link guidance for affected versions and remediation status.
- Check vulnerability management records for CVE-2021-46455 tracking.
- Review logs for unusual router administration or configuration changes.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-46455 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://www.dlink.com/en/security-bulletin/CVE reference · x_refsource_MISC
- https://github.com/pjqwudi/my_vuln/blob/main/D-link/vuln_22/22.mdCVE reference · x_refsource_MISC
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10285CVE 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.