Check Point Advisories

Microsoft Windows Media Heap Overflow (CVE-2025-29962)

Vulnerability
Protection

Check Point Reference:	CPAI-2025-16239
Date Published:	25 May 2026
Severity:	High
Last Updated:	Monday 25 May, 2026
Source:
Industry Reference:	CVE-2025-29962
Protection Provided by:	Security Gateway R82, R81, R80, R77, R75
Who is Vulnerable?	Microsoft Windows 10 1507 x64 prior to 10.0.10240.21014 Microsoft Windows 10 1507 x86 prior to 10.0.10240.21014 Microsoft Windows 10 1607 x64 prior to 10.0.14393.8066 Microsoft Windows 10 1607 x86 prior to 10.0.14393.8066 Microsoft Windows 10 1809 x64 prior to 10.0.17763.7314 Microsoft Windows 10 1809 x86 prior to 10.0.17763.7314 Microsoft Windows 10 21H2 ARM64 prior to 10.0.19044.5854 Microsoft Windows 10 21H2 x64 prior to 10.0.19044.5854 Microsoft Windows 10 21H2 x86 prior to 10.0.19044.5854 Microsoft Windows 10 22H2 ARM64 prior to 10.0.19045.5854 Microsoft Windows 10 22H2 x64 prior to 10.0.19045.5854 Microsoft Windows 10 22H2 x86 prior to 10.0.19045.5854 Microsoft Windows 11 22H2 ARM64 prior to 10.0.22621.5335 Microsoft Windows 11 22H2 x64 prior to 10.0.22621.5335 Microsoft Windows 11 23H2 ARM64 prior to 10.0.22631.5335 Microsoft Windows 11 23H2 x64 prior to 10.0.22631.5335 Microsoft Windows 11 24H2 ARM64 prior to 10.0.26100.4061 Microsoft Windows 11 24H2 x64 prior to 10.0.26100.4061 Microsoft Windows Server 2008 SP2 Microsoft Windows Server 2008 R2 SP1 x64 Microsoft Windows Server 2012 Microsoft Windows Server 2012 R2 Microsoft Windows Server 2016 prior to 10.0.14393.8066 Microsoft Windows Server 2019 prior to 10.0.17763.7314 Microsoft Windows Server 2022 prior to 10.0.20348.3692 Microsoft Windows Server 2022 23H2 prior to 10.0.25398.1611 Microsoft Windows Server 2025 prior to 10.0.26100.4061
Vulnerability Description	A heap overflow vulnerability in Microsoft Windows Media allows an unauthorized attacker to execute code over a network. This vulnerability affects multiple versions of Microsoft Windows, including Windows 10 and Windows Server, and could result in remote code execution.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R82 / R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Microsoft Windows Media Heap Overflow (CVE-2025-29962) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Windows SMB Protection Violation.
Attack Information: Microsoft Windows Media Heap Overflow (CVE-2025-29962)