Security readout for executives and security teams
CVE-1999-0387 is an old Windows 95 and Windows 98 issue where cached network credentials could expose plaintext passwords. The business risk is mainly for organizations that still run, archive, or connect these legacy systems to networks. Exposure is likely limited to environments retaining Windows 95 or Windows 98 systems, backups, lab machines, or embedded legacy deployments using network password caching. Treat this as legacy-risk cleanup, not an internet-scale emergency. Prioritize if Windows 95 or Windows 98 systems remain connected to sensitive networks or reuse current credentials. Mitigation focus: Inventory any Windows 95 or Windows 98 assets and remove them from production networks.; Review Microsoft MS99-052 and Q168115 for vendor remediation guidance.; Disable or avoid legacy credential caching where vendor guidance supports it..
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
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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-1999-0387 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
- MS99-052CVE reference · vendor-advisory, x_refsource_MS
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.