Security readout for executives and security teams
Plain-English summary
CVE-2021-39614 describes hard-coded, undocumented user credentials in D-Link DVX-2000MS. The source says weak password hashes in /etc/passwd can allow plaintext recovery. This creates a risk that an attacker with access to the device could authenticate using accounts the organization did not provision or manage.
Executive priority
Treat this as high priority where DVX-2000MS is deployed, especially in voice or communications infrastructure. The unknown severity score does not reduce concern because hard-coded undocumented credentials can bypass normal access controls.
Technical view
The reported issue is hard-coded credentials for undocumented accounts stored in /etc/passwd on D-Link DVX-2000MS. The CVE record does not provide CVSS, CWE, fixed versions, or detailed affected-version data. KEV is false in the supplied bundle, so active exploitation is not established here.
Likely exposure
Exposure is most relevant to organizations still operating D-Link DVX-2000MS devices. The bundle does not establish affected firmware ranges, internet exposure, or whether other D-Link products are affected.
Exploitation context
The supplied sources do not show confirmed active exploitation or CISA KEV listing. The risk comes from undocumented credentials and weak hashes, which can undermine normal account governance if an attacker can access the system.
Researcher notes
Evidence is limited in the supplied bundle: no CVSS, CWE, patch version, or affected firmware range is provided. Analysis should stay scoped to DVX-2000MS unless vendor advisory text confirms broader impact.
Mitigation direction
- Review D-Link SAP10236 and the D-Link security bulletin for official guidance.
- Inventory environments for any D-Link DVX-2000MS devices.
- Remove or replace devices that cannot be brought into a supported secure state.
- Restrict device management access to trusted administrative networks.
- Do not rely on normal password rotation to solve hard-coded accounts.
Validation and detection
- Confirm whether D-Link DVX-2000MS exists in asset inventory.
- Compare device firmware and model details against D-Link advisory SAP10236.
- Verify management interfaces are not publicly reachable.
- Review account configuration for undocumented users using approved administrative procedures.
- Check logs for unexpected authentication to device management services.
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-2021-39614 mapping review
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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://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10236CVE reference · x_refsource_MISC
- https://www.nussko.com/advisories/advisory-2021-08-01.txtCVE 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.