Local privilege escalation via heap buffer overflow
Published Sep 8, 2026 · Updated Sep 9, 2026
Heap-based buffer overflow in Microsoft Windows Audio Service allows local users with low privileges to elevate privileges on affected systems. Microsoft has not published the affected routine, input, buffer, or erroneous copy operation beyond identifying heap-based memory corruption in the service. Exploitation requires local low-privilege access and can grant elevated control over the affected system.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows Audio Service allows local users with low privileges to elevate privileges on affected systems. Microsoft has not published the affected routine, input, buffer, or erroneous copy operation beyond identifying heap-based memory corruption in the service. Exploitation requires local low-privilege access and can grant elevated control over the affected system.
The record
- CVE
- CVE-2026-69447
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-122, 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=10.0.26100.0 <10.0.26100.33438
What conditions does exploitation require?
What is affected?
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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