Privilege Escalation Vulnerability in Windows Audio Service by Microsoft
CVE-2026-97799

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 11 Version 24h2
Windows 11 Version 25h2
Windows 11 Version 26h1
Windows 11 Version 26h2
Vendor
CVE Published:
13 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-97799?

A vulnerability exists in the Windows Audio Service due to improper verification of cryptographic signatures. This flaw allows an authorized attacker to potentially elevate their privileges locally, which could enable them to execute unauthorized actions with elevated privileges on the affected system. Users are advised to apply the security patches provided by Microsoft to mitigate this risk.

Affected Version(s)

Windows 11 Version 24H2 ARM64-based Systems 10.0.26100.0 < 10.0.26100.9711

Windows 11 Version 25H2 ARM64-based Systems 10.0.26200.0 < 10.0.26200.9711

Windows 11 version 26H1 ARM64-based Systems 10.0.28000.0 < 10.0.28000.3231

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

sound-of-system
Created by heluhule

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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