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CVE-2026-25188 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: March 11, 2026

Windows Telephony Service - Privilege Escalation

Published: March 10, 2026Updated: March 11, 2026

Overview

Windows Telephony Service contains a heap-based buffer overflow caused by improper memory handling, letting unauthorized attackers elevate privileges over an adjacent network, exploit requires network access.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

Unauthorized attackers can elevate privileges, potentially gaining higher system access.

Mitigation

Update to the latest Windows version with security patches.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25188

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-25188
Severity: High
CVSS Score: 8.8
Type: buffer_overflow
Status: unconfirmed

CWE

CWE-122

CVSS Metrics

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H