Local privilege escalation via kernel use-after-free
Published Sep 8, 2026 · Updated Sep 9, 2026
Use-after-free in the Windows Kernel in affected Microsoft Windows releases allows local users to elevate privileges. Microsoft identifies the memory-lifetime error but has not disclosed the kernel object, code path, or operation that accesses freed memory. Exploitation requires existing low-privileged local access and a high-complexity condition; success grants elevated control over confidentiality, integrity, and availability.
Summary
What happened
Use-after-free in the Windows Kernel in affected Microsoft Windows releases allows local users to elevate privileges. Microsoft identifies the memory-lifetime error but has not disclosed the kernel object, code path, or operation that accesses freed memory. Exploitation requires existing low-privileged local access and a high-complexity condition; success grants elevated control over confidentiality, integrity, and availability.
The record
- CVE
- CVE-2026-69473
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 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 <10.0.17763.9245
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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