smss.exe debugging subsystem in Windows NT and Windows 2000 does not properly authenticate programs that connect to other programs, which allows local users to gain administrator or SYSTEM privileges by duplicating a handle to a privileged process, as demonstrated by DebPloit.
Conclusion & alert: CVE-2002-0367 is rated Critical Active Threat (83.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.25%). Core evidence: CISA KEV confirms active exploitation (added 2022-03-03) affecting Microsoft / Windows. a weakness (CWE-269) Unauthenticated remote administrative access may be possible. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
: Microsoft Windows Privilege Escalation Vulnerability · CISA KEV detail
: 2022-03-03
: 2022-03-24
: Apply updates per vendor instructions.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 21344 | exploit_db | edb | 2002-03-13 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-06-04 | 1.45% | 1.25% | -0.20% |
| 2 | 2026-05-31 | 1.87% | 1.45% | -0.42% |
| 3 | 2026-04-17 | — | 1.87% | — |
Full EPSS history (27 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:-:*:*:*:*:*:*:* |
| microsoft | windows_nt | 4.0 | cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:* |
| microsoft | windows_nt | 4.0 | cpe:2.3:o:microsoft:windows_nt:4.0:-:*:*:terminal_server:*:*:* |
| URL | Tags |
|---|---|
| http://marc.info/?l=ntbugtraq&m=101614320402695&w=2 | Mailing List |
| http://www.iss.net/security_center/static/8462.php | Broken Link Patch Vendor Advisory |
| http://www.securityfocus.com/archive/1/262074 | Broken Link Exploit Patch Third Party Advisory VDB Entry Vendor Advisory |
| http://www.securityfocus.com/archive/1/264441 | Broken Link Third Party Advisory VDB Entry |
| http://www.securityfocus.com/archive/1/264927 | Broken Link Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/4287 | Broken Link Third Party Advisory VDB Entry |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-024 | Patch Vendor Advisory |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A158 | Broken Link |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A76 | Broken Link |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2002-0367 | US Government Resource |