CVE-2026-20483: High severity Microsoft Telephony vulnerability
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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch ALPS11087526
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20483?
The severity of CVE-2026-20483 is high, with a CVSS score of 7.7.
How do I fix CVE-2026-20483?
To fix CVE-2026-20483, apply the patch identified by Patch ID ALPS11087526.
What type of vulnerability is CVE-2026-20483?
CVE-2026-20483 is a privilege escalation vulnerability due to a missing permission check in Telephony.
Is user interaction required to exploit CVE-2026-20483?
No, user interaction is not required to exploit CVE-2026-20483.
What could happen if CVE-2026-20483 is not addressed?
If CVE-2026-20483 is not addressed, it could lead to a local escalation of privilege without additional execution privileges needed.