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CVE-2026-34328: Windows Audio Service Information Disclosure Vulnerability

mediumCVSS 5.5CVE-2026-34328
Exposure of sensitive information to an unauthorized actor in Windows Audio Service allows an authorized attacker to disclose information locally.

CSIRTS triage

vendor: Microsoftproduct: Windows Audio ServiceInformation disclosure
What
Windows Audio Service has an information disclosure vulnerability that allows unauthorized access to sensitive information.
Who is affected
Authorized users of Windows Audio Service are affected.
Urgency
Remediation is necessary due to the medium severity of the vulnerability.
Action
Apply the latest security updates for Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34328

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-34328coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Windows Audio Service

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from Microsoft Security Response Center