Security Resilience

CVE-2002-0367

LPE in Microsoft Windows Nt 4.0

CISA KEVActive ExploitationEUVD ExploitedPublic PoCLPE
Published
25 June 2002
Modified
16 April 2026
KEV Added
03 March 2022
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.049 92th percentile
Risk Priority 83 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2002-0367 is a high-severity Improper Privilege Management (CWE-269) vulnerability in Microsoft Windows Nt. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 8% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

The vulnerability is an authentication flaw in the debugging subsystem of smss.exe on Windows NT and Windows 2000. The component fails to properly validate programs that connect to other processes, enabling unauthorized handle duplication to privileged targets. This is tracked as CWE-269 and carries a CVSS 3.1 score of 7.8 reflecting local attack requirements.

Local users can exploit the issue by duplicating a handle to a privileged process, thereby elevating their privileges to administrator or SYSTEM level. The flaw was publicly demonstrated by the DebPloit tool, allowing any authenticated local account to obtain full system control without additional user interaction.

References to the issue appear in NTBugtraq and SecurityFocus archives from 2002, though the supplied sources contain no explicit patch or mitigation details.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

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…

more

DebPloit.

CWE(s)
KEV Date Added
03 March 2022

Related Threats

CVEs Like This One

CVE-2004-0210Same product: Microsoft Windows 2000both on KEV
CVE-2024-26169Same vendor: Microsoftboth on KEV
CVE-2016-0151Same vendor: Microsoftboth on KEV
CVE-2026-21533Same vendor: Microsoftboth on KEV
CVE-2019-1215Same vendor: Microsoftboth on KEV
CVE-2019-1405Same vendor: Microsoftboth on KEV
CVE-2024-49035Same vendor: Microsoftboth on KEV
CVE-2024-38014Same vendor: Microsoftboth on KEV
CVE-2019-1388Same vendor: Microsoftboth on KEV
CVE-2010-0232Same product: Microsoft Windows 2000both on KEV

Affected Assets

microsoft
windows 2000
all versions
microsoft
windows nt
4.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-269

Policy addresses roles, responsibilities, and privilege management to prevent improper privilege assignments.

addresses: CWE-269

Access supervision ensures privileges are assigned and managed without improper escalation or retention.

addresses: CWE-269

Assigning group/role memberships and access authorizations (privileges) while reviewing accounts addresses improper privilege management.

addresses: CWE-269

Enforces proper privilege management by requiring all decisions through the verified reference monitor.

addresses: CWE-269

By mandating division of duties across roles, the control enforces proper privilege management and prevents a single entity from controlling an entire sensitive process.

addresses: CWE-269

Implements core proper privilege management by restricting to only required rights.

addresses: CWE-269

Policy requires training on privilege management and least privilege, making it harder to exploit improper privilege management weaknesses.

addresses: CWE-269

Training covers proper privilege management practices, making incorrect privilege assignments less likely.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

A.5.15 directly mandates determining access requirements, defining/enforcing topic-specific access control policy, assigning rights/restrictions by entity/role, consistency with classification, need-to-know, privileged access restrictions, segregation, formal authorization, and dynamic rules — which stops most improper privilege management from being exploitable; bounded remainder is flawed implementation of those rules (e.g. incorrect mapping or enforcement bugs).

blocks

A.5.18 directly governs the provisioning, review, modification and timely revocation of access rights (including for role changes, termination and privilege levels), which stops most improper privilege spheres from being exploitable even if the assignment flaw exists; the bounded remainder is flaws in the underlying enforcement mechanism itself (e.g. AC-3/A.8.3)

blocks

Defining and communicating authorization levels for each role limits the assignment of excessive or unnecessary privileges.

A.8.15 Logging partial match
finds

Logging every use of privileges and protecting those records makes it harder for an attacker who has obtained elevated rights to operate without leaving evidence.

blocks

A.8.2 directly controls the identification, allocation, review, expiry, temporary use, and separation of privileged rights per policy, which prevents most improper privilege management (CWE-269) by design; the bounded remainder is flawed tracking/checking logic inside the product's own enforcement code (the AC-3 slice of 269).

blocks

A.8.27 mandates security-by-design principles including least privilege, default deny, fail securely, defence in depth, security architecture integration, hardening, and zero-trust verification of every request; these directly stop most improper privilege spheres from being exploitable even if the assignment flaw remains, with a bounded remainder (e.g. certain legacy or safety-overridden controls).

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

References