Local privilege escalation via LUAFV heap overflow
Published Aug 11, 2026 · Updated Aug 25, 2026
Heap-based buffer overflow in Microsoft Windows LUAFV allows local users with low privileges to elevate privileges on affected systems. Microsoft identifies LUAFV as the affected filter driver but has not disclosed the operation or input that overruns its heap buffer. Exploitation requires local low-privilege access and high-complexity conditions; success compromises the host at elevated privilege.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows LUAFV allows local users with low privileges to elevate privileges on affected systems. Microsoft identifies LUAFV as the affected filter driver but has not disclosed the operation or input that overruns its heap buffer. Exploitation requires local low-privilege access and high-complexity conditions; success compromises the host at elevated privilege.
The record
- CVE
- CVE-2026-50472
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 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=10.0.17763.0 <10.0.17763.9121
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.
Weakness, pattern, technique
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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