Tao Yan

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 138.0.4 Firefox ESR versions prior to 128.10.1 Firefox ESR versions prior to 115.23.1 **Description** An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This issue was demonstrated during Pwn2Own Berlin 2025, where it was used to trigger out-of-bounds memory access. The vulnerability allows for code execution. **Recommendations** For Firefox versions prior to 138.0.4, update to version 138.0.4 or later. For Firefox ESR versions prior to 128.10.1, update to version 128.10.1 or later. For Firefox ESR versions prior to 115.23.1, update to version 115.23.1 or later.

**Name of the Vulnerable Software and Affected Versions** Google Chrome versions prior to 123.0.6312.105 **Description** The issue is related to out of bounds memory access in the V8 engine of Google Chrome, allowing a remote attacker to perform arbitrary read/write via a crafted HTML page. This can lead to remote code execution. The vulnerability was demonstrated at Pwn2Own 2024, where it was successfully exploited, and the attackers earned $42,500. The Chromium security severity of this issue is High. **Recommendations** For Google Chrome versions prior to 123.0.6312.105, update to version 123.0.6312.105 or later to resolve the issue. As a temporary workaround, consider restricting access to potentially vulnerable web pages until the update is applied. Avoid using Google Chrome to access untrusted websites or HTML pages until the issue is resolved.

**Name of the Vulnerable Software and Affected Versions** Windows Hyper-V (affected versions not specified) **Description** The issue is related to insufficient access controls in the Hyper-V hardware virtualization system of Microsoft Windows, allowing an attacker to potentially elevate their privileges. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Windows AppX Deployment Extensions (affected versions not specified) **Description** The issue is related to insufficient access restrictions in Windows AppX Deployment Extensions, allowing an attacker to elevate their privileges using a specially crafted application. This can affect the system, potentially leading to privilege escalation. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Windows Desktop Bridge (affected versions not specified) **Description** The issue is related to insufficient input validation in the Windows Desktop Bridge application converter, which can be exploited to cause a denial of service. This could allow an attacker to affect the system. No information is available about the estimated number of potentially affected devices or real-world incidents where this issue was exploited. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Microsoft Jet Red Database Engine and Access Connectivity Engine (affected versions not specified) **Description** The issue is related to incorrect code generation management in the Microsoft Jet Red Database Engine and Access Connectivity Engine of Microsoft Windows operating systems. It allows a remote attacker to execute arbitrary code. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Microsoft Office (affected versions not specified) **Description** A vulnerability in Microsoft Office exists due to insufficient input validation. Exploitation of this issue may allow an attacker to execute arbitrary code. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Name of the Vulnerable Software and Affected Versions: Windows Application Compatibility Client Library (affected versions not specified) Description: The issue is related to the improper handling of registry operations by the Windows Application Compatibility Client Library, which could allow an attacker to gain elevated privileges. To exploit this, an attacker would first need code execution on a victim system and then run a specially crafted application. The security update addresses the vulnerability by ensuring the library properly handles registry operations. Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Internet Explorer versions in Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 **Description** The issue is related to how Internet Explorer handles objects in memory, allowing an attacker to gain the same user rights as the current user. This could lead to memory corruption, enabling an attacker to execute arbitrary code in the context of the current user. If the current user has administrative user rights, the attacker could take control of the affected system, install programs, view, change, or delete data, or create new accounts with full user rights. **Recommendations** For Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709, consider disabling JavaScript as a temporary workaround until a patch is available. Restrict access to Internet Explorer to minimize the risk of exploitation. Avoid using Internet Explorer for sensitive operations until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.