Security readout for executives and security teams
Plain-English summary
CVE-2021-46441 affects the D-Link DIR-825 G1 router. An authenticated attacker may be able to make the device run arbitrary system commands through the web upgrade component. The public bundle does not provide CVSS, firmware ranges, confirmed fixes, or active exploitation evidence.
Executive priority
Treat this as a high-priority edge-device risk if DIR-825 G1 routers are in use. Prioritize discovery and management-plane restriction first, then follow vendor guidance on updates or replacement.
Technical view
The CVE describes missing parameter verification in the DIR-825 G1 `webupg` binary, where authorized users can abuse `cmd` parameters to execute arbitrary system commands. The record lists no CWE, CVSS score, precise affected firmware versions, or remediation details.
Likely exposure
Exposure is most likely where D-Link DIR-825 G1 administration interfaces are reachable by users or networks that should not manage the router. The bundle does not prove broad internet exposure or identify exact firmware versions.
Exploitation context
The CVE states authorization is required before command execution. CISA KEV status is false in the bundle, and no cited source confirms active exploitation. Public GitHub reference exists, but exploit maturity is not established here.
Researcher notes
Evidence is sparse. The core issue is authenticated command execution in `webupg`, but the bundle lacks firmware ranges, CVSS, CWE mapping, patch status, and vendor-specific remediation text. Avoid assuming unauthenticated exploitation or active exploitation.
Mitigation direction
- Check D-Link security guidance for DIR-825 G1 firmware or retirement recommendations.
- Restrict router administration access to trusted management networks only.
- Disable internet-facing administrative access where present.
- Use strong unique administrator credentials and remove unnecessary admin accounts.
- Replace unsupported devices if no vendor fix is available.
Validation and detection
- Inventory environments for D-Link DIR-825 G1 routers.
- Record firmware versions and compare them with D-Link guidance.
- Confirm management interfaces are not exposed to the public internet.
- Review router administration logs for unexpected authenticated activity.
- Verify only authorized administrators can reach the management interface.
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-2021-46441 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/tgp-top/D-Link-DIR-825CVE 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.