Windows
CVE-2026-23674
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessCraft malicious URL with path equivalence
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ExploitSubmit to MapUrlToZone function
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ExecutionFunction resolves URL to incorrect security zone
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ImpactAttacker gains unauthorized access to restricted zone resources
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path traversal prevention
|
| Exploitation Conditions | No special conditions — remote unauthenticated exploitation against default Windows MapUrlToZone configurations that perform URL-to-zone mapping without proper path normalization. |
| Impact | CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitation no authentication required. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker without authentication could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Windows MapUrlToZone security bypass in Windows 11 24H2, Windows 10 21H2, and Windows Server 2016/2025 allows unauthenticated remote attackers to circumvent zone-based security restrictions through improper path equivalence resolution. An attacker can exploit this network-accessible vulnerability without user interaction to bypass intended access controls. No patch is currently available for this high-severity vulnerability.
Earlier versions of this analysis (1)
Improper resolution of path equivalence in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network. [CVSS 7.5 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 15 packages in microsoft
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Improper resolution of path equivalence in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
Improper resolution of path equivalence in Windows MapUrlToZone allows an unauthorized attacker to bypass a security feature over a network.
Executive ViewAI
CVE-2026-23674 is a HIGH severity vulnerability affecting Windows systems that allows attackers to bypass critical security zone protections, potentially enabling unauthorized access to sensitive resources over the network. With no patch currently available, this poses an immediate risk to organizations relying on Windows security zone controls for access restrictions.
Implement network segmentation to isolate affected Windows systems from untrusted networks. Deploy WAF rules to detect and block suspicious URL patterns targeting zone bypass techniques. Disable Internet Explorer and legacy zone-based features where operationally feasible. Apply URL filtering at the perimeter and enable threat detection on DNS/HTTP traffic. Restrict local administrator privileges to limit attack impact. Monitor for exploitation attempts via security event logs and endpoint detection tools.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)CVE.org
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GitHub PoC
Exploit-DB