Publicly Disclosed Zero-Day Vulnerability in Windows Kerberos

Overview of CVE-2025-53779

The recently disclosed vulnerability, identified as CVE-2025-53779, presents a moderate elevation of privilege risk within Windows Kerberos, boasting a CVSS score of 7.2. This vulnerability allows authorized attackers with high privileges to exploit a relative path traversal flaw in Windows Kerberos over a network connection, all without requiring user interaction.

While the vulnerability has been made public and functional exploit code is available, there is currently no evidence of active exploitation. Nevertheless, the potential for exploitation remains a concern, particularly in environments where attackers already possess elevated privileges.

Technical Details

To successfully exploit CVE-2025-53779, attackers must have elevated access to specific dMSA attributes, including msds-groupMSAMembership and write access to msds-ManagedAccountPrecededByLink. If exploited, attackers can gain domain administrator privileges, leading to significant privilege escalation and posing a serious risk to the confidentiality, integrity, and availability of affected Windows domain environments. Microsoft has released an official fix for this vulnerability.

Summary Table

Critical Vulnerability in Windows Graphics Component

Overview of CVE-2025-50165

Another critical vulnerability, CVE-2025-50165, affects the Windows Graphics Component and carries a CVSS score of 9.8. This vulnerability enables unauthenticated remote attackers to execute arbitrary code by exploiting untrusted pointer dereference and the use of uninitialized resources within the Microsoft Graphics Component.

Exploitation Scenarios

The vulnerability can be triggered when decoding JPEG images embedded in Office documents or third-party files. An attacker can exploit an uninitialized function pointer during this decoding process, allowing for full system compromise without any user intervention. Although this vulnerability has not been publicly disclosed and there is no evidence of active exploitation, Microsoft has issued an official fix.

Summary Table

Critical Vulnerability in GDI+

Overview of CVE-2025-53766

The vulnerability identified as CVE-2025-53766 is a critical remote code execution flaw affecting GDI+ with a CVSS score of 9.8. This vulnerability allows unauthenticated remote attackers to execute arbitrary code by exploiting a heap-based buffer overflow in Windows GDI+.

Exploitation Mechanics

Exploitation can occur through document processing on web services, where attackers can upload documents containing specially crafted metafiles. This vulnerability does not involve the Preview Pane as an attack vector, making it particularly concerning for web services. Microsoft has also released an official fix for this vulnerability.

Summary Table

Critical Vulnerability in Windows NTLM

Overview of CVE-2025-53778

The vulnerability CVE-2025-53778 is a critical elevation of privilege issue affecting Windows NTLM, with a CVSS score of 8.8. This vulnerability allows authenticated attackers with low privileges to escalate their privileges by exploiting improper authentication in Windows NTLM.

Risk Assessment

This vulnerability is particularly concerning as it allows privilege escalation from low-privileged authenticated access to complete system control through NTLM authentication bypass. Microsoft has released an official fix for this vulnerability.

Summary Table

Critical Vulnerabilities in Microsoft Office Products

Several critical vulnerabilities have been identified in Microsoft Office products, each with a CVSS score of 8.4:

1. CVE-2025-53731: Remote code execution vulnerability allowing unauthenticated attackers to execute arbitrary code locally by exploiting a use-after-free vulnerability.
2. CVE-2025-53733: Similar to the previous, this vulnerability affects Microsoft Word and allows for arbitrary code execution through incorrect conversion between numeric types.
3. CVE-2025-53740: Another use-after-free vulnerability in Microsoft Office.
4. CVE-2025-53784: Affects Microsoft Word, allowing for arbitrary code execution through a use-after-free vulnerability.

Microsoft has released official fixes for all these vulnerabilities.

Summary Table

Critical Vulnerability in Microsoft Message Queuing

Overview of CVE-2025-50177

The vulnerability CVE-2025-50177 is a critical remote code execution flaw affecting Microsoft Message Queuing (MSMQ) with a CVSS score of 8.1. This vulnerability allows unauthenticated remote attackers to execute arbitrary code by exploiting use-after-free and race condition vulnerabilities.

Exploitation Complexity

Exploitation requires high attack complexity, as attackers must win a race condition by sending specially crafted MSMQ packets in rapid sequence over HTTP to an MSMQ server. Microsoft has released an official fix for this vulnerability.

Summary Table

Critical Vulnerabilities in Microsoft Azure

Several critical vulnerabilities have been identified in Microsoft Azure, including:

1. CVE-2025-49707: A spoofing vulnerability with a CVSS score of 7.9.
2. CVE-2025-53781: An information disclosure vulnerability with a CVSS score of 7.7.
3. CVE-2025-53793: An information disclosure vulnerability affecting Azure Stack Hub with a CVSS score of 7.5.

Microsoft has fully mitigated these vulnerabilities at the service level, requiring no customer action.

Summary Table

Critical Vulnerability in DirectX Graphics Kernel

Overview of CVE-2025-50176

The vulnerability CVE-2025-50176 is a critical remote code execution flaw affecting the DirectX Graphics Kernel, with a CVSS score of 7.8. This vulnerability allows authenticated attackers with low privileges to execute arbitrary code locally.

Exploitation Conditions

Exploitation requires local access to the system, and any authenticated user can trigger the vulnerability without requiring administrative privileges. Microsoft has released an official fix for this vulnerability.

Summary Table

Critical Vulnerability in Windows Hyper-V

Overview of CVE-2025-48807

The vulnerability CVE-2025-48807 is a critical remote code execution flaw affecting Windows Hyper-V, with a CVSS score of 7.5. This vulnerability allows authenticated attackers with low privileges to execute arbitrary code locally.

Exploitation Complexity

The attack requires a race condition to be triggered when an administrator begins administering from the host system. Microsoft has released an official fix for this vulnerability.

Summary Table

New AI-Powered Capabilities in Falcon Exposure Management

With CrowdStrike Falcon® Exposure Management, security teams can automatically classify and prioritize assets, revealing attack paths targeting client-side exploitation of devices. This innovative approach integrates seamlessly with CrowdStrike Falcon® Next-Gen SIEM, enhancing overall security posture.

Patch Tuesday Dashboard in the Falcon Platform

For a visual overview of the systems impacted by this month’s vulnerabilities, users can utilize the Patch Tuesday dashboard within the CrowdStrike Falcon® platform. This dashboard provides insights into the most recent vulnerabilities over the past three months.

Mitigation Strategies

It is crucial to recognize that not all relevant vulnerabilities have patches readily available. Organizations should develop comprehensive response plans to defend their environments when no patching protocol exists. Regular reviews of patching strategies should be complemented by a holistic approach to cybersecurity.

Conclusion

As Microsoft plans to discontinue support for Windows 10 in October 2025, organizations must prepare for this transition to ensure they continue receiving critical security updates. The CrowdStrike Falcon platform regularly analyzes trillions of endpoint events daily, providing organizations with the tools necessary to enhance their cybersecurity strategies.

About CVSS Scores

The Common Vulnerability Scoring System (CVSS) is an industry standard used to assess and communicate the severity of software vulnerabilities. The CVSS Base Score ranges from 0.0 to 10.0, providing a clear framework for understanding the impact of vulnerabilities.

Additional Resources

For further information on vulnerability management and cybersecurity strategies, organizations are encouraged to explore the resources provided by CrowdStrike and other cybersecurity experts.