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CVE-2026-20864

nvd nist
Published: Jan 13, 2026Modified: May 26, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: secure@microsoft.com (Secondary)

Description

Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.

Affected (11)

Microsoft
10 products
Windows 10 1809
Windows 10 21h2
Windows 10 22h2
Windows 11 23h2
Windows 11 24h2
Windows 11 25h2
Windows Server 2019
Windows Server 2022
Windows Server 2022 23h2
Windows Server 2025
Configuration A
11 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Windows 10 1809
Before 10.0.17763.8276
Windows 10 1809
Before 10.0.17763.8276
Windows 10 21h2
Before 10.0.19044.6809
Windows 10 22h2
Before 10.0.19045.6809
Windows 11 23h2
Before 10.0.22631.6491
Windows 11 24h2
Before 10.0.26100.7623
Windows 11 25h2
Before 10.0.26200.7623
Windows Server 2019
Before 10.0.17763.8276
Windows Server 2022
Before 10.0.20348.4648
Windows Server 2022 23h2
Before 10.0.25398.2092
Windows Server 2025
Before 10.0.26100.32230

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 (3)

Source: secure@microsoft.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.