Security readout for executives and security teams
Plain-English summary
CVE-2021-46453 is a reported command injection flaw in D-Link DIR-823-Pro v1.0.2. If an attacker can reach the affected static route setting path, they may be able to run operating-system commands on the device. The public source bundle does not provide CVSS scoring, confirmed exploitation, or a named fixed version.
Executive priority
Treat as a priority asset-scoping issue. Command injection on network edge equipment can create serious business risk, but urgency depends on whether affected devices exist and whether management access is exposed.
Technical view
The CVE description identifies command injection in SetStaticRouteSettings through the staticroute_list parameter on D-Link DIR-823-Pro v1.0.2. The affected-product metadata in the bundle is incomplete, so scoping should rely on device inventory and vendor advisories. KEV status is false, and no source in the bundle confirms active exploitation.
Likely exposure
Exposure is most likely limited to environments using D-Link DIR-823-Pro v1.0.2, especially where device administration or route-management functions are reachable from untrusted networks. The bundle does not establish broader D-Link product impact.
Exploitation context
The vulnerability class can allow arbitrary command execution, but the provided sources do not confirm real-world exploitation. A public GitHub reference exists, so defenders should treat technical details as publicly accessible without assuming active exploitation.
Researcher notes
The source bundle lacks CVSS, CWE, patch details, and complete affected-product metadata. The CVE names the function and parameter, but validation should avoid offensive testing unless explicitly authorized and should focus on inventory, exposure, firmware, and vendor guidance.
Mitigation direction
- Identify any D-Link DIR-823-Pro v1.0.2 devices in inventory.
- Check D-Link security advisories for firmware, lifecycle, or replacement guidance.
- Restrict router administration access to trusted management networks only.
- Remove any internet exposure of administrative interfaces.
- Monitor affected devices for unexpected configuration changes or commands.
Validation and detection
- Confirm exact model and firmware version from asset inventory or device administration records.
- Check whether administrative interfaces are reachable from untrusted networks.
- Review static route configuration changes for suspicious or unauthorized entries.
- Compare current firmware and lifecycle status against D-Link advisory guidance.
- Look for unexplained device behavior consistent with compromise.
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-2021-46453 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_25/25.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.