In early June 2025, a series of high-risk vulnerabilities were identified across multiple Microsoft products, including Windows, Azure, Microsoft Office, Developer Tools, and legacy systems receiving Extended Security Updates (ESU). These vulnerabilities pose significant threats, potentially allowing attackers to execute arbitrary code, escalate privileges, disclose sensitive information, and disrupt services.
Key Vulnerabilities Identified:
- Windows Vulnerability (CVE-2025-29959): This critical flaw enables attackers to execute malicious code, access sensitive data, cause system crashes, or gain elevated privileges.
- Extended Security Updates (ESU) Vulnerabilities (CVE-2025-29960 and CVE-2025-29959): Affecting legacy Microsoft products, these vulnerabilities could allow unauthorized control, data exposure, or service disruptions.
- Azure Vulnerabilities (CVE-2025-27488, CVE-2025-30387, CVE-2025-29973): These flaws may permit attackers to escalate privileges and perform unauthorized actions within Azure environments.
- Developer Tools Vulnerabilities (CVE-2025-21264, CVE-2025-32703, CVE-2025-26646): These issues could lead to security feature bypasses, system spoofing, or unauthorized information disclosure.
- Microsoft Office Vulnerabilities (CVE-2025-29979, CVE-2025-29978, CVE-2025-29977, CVE-2025-29976): These critical vulnerabilities may allow attackers to execute arbitrary code or gain elevated privileges through malicious documents.
- Microsoft Apps Vulnerability (CVE-2025-29975): This flaw could enable unauthorized access or modifications within Microsoft applications.
- System Center and Dynamics Vulnerabilities (CVE-2025-26684 and CVE-2025-29826): These vulnerabilities may allow attackers to gain elevated privileges and control over affected systems.
If exploited, these vulnerabilities could lead to:
- Remote Code Execution: Attackers could run arbitrary code on affected systems, potentially leading to full system compromise.
- Privilege Escalation: Unauthorized users might gain elevated access rights, compromising system integrity.
- Information Disclosure: Sensitive data could be exposed, leading to privacy breaches and data theft.
- Denial of Service (DoS): Systems could be rendered inoperable, disrupting business operations.
- Security Feature Bypass: Attackers might circumvent security mechanisms, leaving systems vulnerable to further exploits.
To mitigate these risks, it is crucial to:
- Apply Security Updates Promptly: Ensure all systems are updated with the latest patches provided by Microsoft.
- Review System Configurations: Assess and adjust security settings to minimize exposure to potential exploits.
- Monitor for Unusual Activity: Implement continuous monitoring to detect and respond to potential security incidents.
- Educate Users: Train staff on recognizing phishing attempts and other common attack vectors.
Source: Security Boulevard https://securityboulevard.com/2025/...h-risk-vulnerabilities-in-microsoft-products/