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High severity · published Oct 13, 2026
CVE-2026-97799
Windows Audio Service Elevation of Privilege Vulnerability
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
W1
Windows 11 Version 24H2 · Microsoft
10.0.26100.0 before 10.0.26100.9711 · source: vendor
W1
Windows 11 Version 25H2 · Microsoft
10.0.26200.0 before 10.0.26200.9711 · source: vendor
W1
Windows 11 Version 26H2 · Microsoft
10.0.26300.0 before 10.0.26300.9711 · source: vendor
W1
Windows 11 version 26H1 · Microsoft
10.0.28000.0 before 10.0.28000.3231 · source: vendor
W1
Windows 11 24h2 · Microsoft
before 10.0.26100.9711; before 10.0.26100.9711 · source: NVD
W1
Windows 11 25h2 · Microsoft
before 10.0.26200.9711; before 10.0.26200.9711 · source: NVD
W1
Windows 11 26h1 · Microsoft
before 10.0.28000.3231; before 10.0.28000.3231 · source: NVD
W1
Windows 11 26h2 · Microsoft
before 10.0.26300.9711; before 10.0.26300.9711 · source: NVD
Affected product
W1
Windows 11 Version 24H2
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-97799
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-97799
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97799
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