Local privilege escalation via integer overflow
Published Sep 8, 2026 · Updated Sep 9, 2026
Integer overflow in Microsoft Windows Biometric Service allows local users to elevate privileges on affected Windows systems. An integer calculation in the service can wrap during attacker-controlled local interaction; Microsoft has not identified the affected function or input field. Exploitation requires existing low-privilege access and no user interaction, and the resulting elevated privilege level remains unspecified.
Summary
What happened
Integer overflow in Microsoft Windows Biometric Service allows local users to elevate privileges on affected Windows systems. An integer calculation in the service can wrap during attacker-controlled local interaction; Microsoft has not identified the affected function or input field. Exploitation requires existing low-privilege access and no user interaction, and the resulting elevated privilege level remains unspecified.
The record
- CVE
- CVE-2026-69298
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-190, 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.
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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