Security readout for executives and security teams
Plain-English summary
This entry flags a configuration weakness rather than a software bug: Windows NT ships with a built-in administrator account literally named "Administrator." Attackers know that name by default, so they only need to guess or steal the password to gain full control. It is a housekeeping issue that raises the risk of account-guessing attacks against legacy Windows NT systems.
Executive priority
Low urgency. Treat as a baseline hardening item inside existing Windows configuration standards rather than an incident-driven fix. Confirm modern endpoints already rename or disable the default administrator account, and prioritize retiring any surviving Windows NT systems, which pose broader unsupported-OS risk beyond this single finding.
Technical view
CVE-1999-0585 documents that Windows NT installs a privileged local account with the predictable default name "Administrator." Because the username half of the credential pair is known, brute-force, password-spray, and social-engineering attacks are simplified against any host where the default name was not renamed. No CVSS score, CWE mapping, or vendor patch is listed; the item is a hardening finding tied to legacy Windows NT deployments.
Likely exposure
Exposure is limited to legacy Windows NT hosts (or later Windows systems that retained the default Administrator name) reachable for interactive, RDP, SMB, or console login. Modern, supported Windows versions and well-hardened environments already address this through account renaming or disabling. The public source bundle names no specific affected products beyond the general Windows NT context.
Exploitation context
Not listed in CISA KEV, and no public source in the bundle claims active exploitation of this specific CVE. Guessing a known administrator username has been standard tradecraft for decades, so the underlying pattern is exploited routinely in the wild, but attribution to this identifier is historical rather than operational.
Researcher notes
This is a legacy CVE (published 2000-02-04) with no CVSS, CWE, or CPE data and only the CVE Program record as a public source. It captures a configuration observation about Windows NT's default account naming rather than a discrete vulnerability. Treat as a hardening baseline item; map validation to CIS Benchmarks for Windows and current Microsoft security baselines instead of expecting vendor patch guidance.
Mitigation direction
- Rename the built-in Administrator account to a non-obvious name on all Windows hosts.
- Disable the built-in Administrator where a separate privileged account exists.
- Enforce strong, unique passwords and account lockout thresholds for privileged accounts.
- Restrict interactive and remote logon for local admin accounts via Group Policy.
- Retire or isolate any remaining Windows NT systems still in production.
Validation and detection
- Inventory Windows hosts and confirm the built-in Administrator SID (RID 500) is renamed or disabled.
- Audit Group Policy 'Accounts: Rename administrator account' settings across domains.
- Review authentication logs for repeated failed logons targeting 'Administrator'.
- Confirm no legacy Windows NT systems remain reachable from untrusted networks.
- Verify lockout, MFA, and privileged-access controls apply to local admin accounts.
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
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ATT&CK lookup starting points
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CVE-1999-0585 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.cve.org/CVERecord?id=CVE-1999-0585CVE 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.