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CVE-2026-25188

nvd nist
Published: Mar 10, 2026Modified: Mar 13, 2026

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8.8
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: secure@microsoft.com

Description

Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to elevate privileges over an adjacent network.

Affected (25)

Microsoft
14 products
Windows 10 1607
Windows 10 1809
Windows 10 21h2
Windows 10 22h2
Windows 11 23h2
Windows 11 24h2
Windows 11 25h2
Windows 11 26h1
Windows Server 2012
Windows Server 2016
Windows Server 2019
Windows Server 2022
Windows Server 2022 23h2
Windows Server 2025
Configuration A
25 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Windows 10 1607
Before 10.0.14393.8957
Windows 10 1607
Before 10.0.14393.8957
Microsoft
Windows 10 1809
Before 10.0.17763.8511
Windows 10 1809
Before 10.0.17763.8511
Microsoft
Windows 10 21h2
Before 10.0.19044.7058
Windows 10 21h2
Before 10.0.19044.7058
Windows 10 21h2
Before 10.0.19044.7058
Microsoft
Windows 10 22h2
Before 10.0.19045.7058
Windows 10 22h2
Before 10.0.19045.7058
Windows 10 22h2
Before 10.0.19045.7058
Microsoft
Windows 11 23h2
Before 10.0.22631.6783
Windows 11 23h2
Before 10.0.22631.6783
Microsoft
Windows 11 24h2
Before 10.0.26100.7979
Windows 11 24h2
Before 10.0.26100.7979
Microsoft
Windows 11 25h2
Before 10.0.26200.7979
Windows 11 25h2
Before 10.0.26200.7979
Microsoft
Windows 11 26h1
Before 10.0.28000.1719
Windows 11 26h1
Before 10.0.28000.1719
Microsoft
Windows Server 2012
All versions
Windows Server 2012
Version r2
Windows Server 2016
Before 10.0.14393.8957
Windows Server 2019
Before 10.0.17763.8511
Windows Server 2022
Before 10.0.20348.4830
Windows Server 2022 23h2
Before 10.0.25398.2207
Windows Server 2025
Before 10.0.26100.32463

Related CWEs

CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (1)

Source: secure@microsoft.com
Vendor Advisory

Timeline

No history available yet.