Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2025-26634

Severity CVSS v4.0:
Pending analysis
Type:
CWE-122 Heap-based Buffer Overflow
Publication date:
11/03/2025
Last modified:
03/07/2025

Description

Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:* 10.0.10240.20915 (excluding)
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* 10.0.14393.7785 (excluding)
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* 10.0.14393.7785 (excluding)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* 10.0.19044.5487 (excluding)
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* 10.0.19045.5487 (excluding)
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* 10.0.22621.4890 (excluding)
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* 10.0.22631.4890 (excluding)
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:* 10.0.26100.3194 (excluding)
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* 10.0.14393.7785 (excluding)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* 10.0.17763.6893 (excluding)
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* 10.0.20348.3207 (excluding)
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* 10.0.25398.1425 (excluding)
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* 10.0.26100.3194 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools