Local privilege escalation via relative path traversal
Published Jul 14, 2026 · Updated Jul 14, 2026
Relative path traversal in Microsoft Windows User Interface Core allows local users with low privileges to elevate privileges. Microsoft identifies the component and weakness but has not disclosed the affected path-handling locus or its operation on attacker-controlled input. A local low-privileged account is required, and successful exploitation grants higher privileges without another user's interaction.
Summary
What happened
Relative path traversal in Microsoft Windows User Interface Core allows local users with low privileges to elevate privileges. Microsoft identifies the component and weakness but has not disclosed the affected path-handling locus or its operation on attacker-controlled input. A local low-privileged account is required, and successful exploitation grants higher privileges without another user's interaction.
The record
- CVE
- CVE-2026-50454
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-23, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 14, 2026CVE publishedPublication date reported by the CVE source.
- Jul 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.26100.0 <10.0.26100.33158
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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