Windows XP with fast user switching and account lockout enabled allows local users to deny user account access by setting the fast user switch to the same user (self) multiple times, which causes other accounts to be locked out.
Conclusion & alert: CVE-2001-1570 is rated Low Risk (34.7/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.59%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.59% | 1.59% | +1.00% |
| 2 | 2026-06-08 | 0.28% | 0.59% | +0.31% |
| 3 | 2025-03-30 | — | 0.28% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:*:home:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:gold:professional:*:*:*:*:* |