CVE-2026-20483: High severity Microsoft Telephony vulnerability

Published Aug 3, 2026
·
Updated

In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.

Affected Software

1 affected component
Microsoft Telephony

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch ALPS11087526

Event History

Aug 3, 2026
CVE Published
via MITRE·02:05 AM
Data Sourced
via MITRE·02:05 AM
DescriptionWeakness
Data Sourced
via NVD·03:16 AM
DescriptionSeverityWeakness
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