Ethical Hacking News
Microsoft Entra ID, a cloud-based identity and access management service, has been found to have a critical vulnerability that allows remote code execution, with a CVSS score of 10.0. The vulnerability has been exploited in the wild, and Microsoft has fully mitigated it. This serves as a reminder of the importance of staying up-to-date with the latest security patches and taking proactive measures to prevent exploitation of known vulnerabilities.
A serious flaw in Microsoft's cloud-based identity and access management service, Microsoft Entra ID, has been identified. The vulnerability, CVE-2026-69836, is classified as a remote code execution (RCE) vulnerability with a CVSS score of 10.0. The vulnerability is due to deserialization of untrusted data, allowing an unauthorized attacker to execute code over a network. Microsoft has fully mitigated the vulnerability, but it has been exploited in the wild. The discovery highlights the importance of a skilled security team in identifying and reporting vulnerabilities. The incident serves as a reminder to stay informed about security vulnerabilities and take proactive measures to mitigate them.
A recent security alert issued by Microsoft has brought to light a serious flaw in their cloud-based identity and access management service, Microsoft Entra ID. The vulnerability, tracked as CVE-2026-69836, has been exploited in the wild and is classified as a remote code execution (RCE) vulnerability, with a CVSS score of 10.0. This classification signifies that the vulnerability is considered to be of the highest severity, with potential consequences including the ability to execute arbitrary code on the compromised system.
The vulnerability is a result of a deserialization of untrusted data in Microsoft Entra ID, which allows an unauthorized attacker to execute code over a network. This type of vulnerability occurs when an application converts user-controlled data back into an active object or code structure without proper validation. As a result, this can lead to code execution, denial-of-service, or access control bypass, permitting an attacker to perform unauthorized actions.
According to Microsoft, the vulnerability has already been fully mitigated by the company, and there is no action required for users of the service. However, this finding may come as a relief to some, as the vulnerability has been exploited in the wild, indicating that an attacker has already gained access to the system. The fact that the vulnerability has been fully mitigated by Microsoft is reassuring, but the fact that it has been exploited in the wild should serve as a warning to system administrators and organizations that rely on Microsoft Entra ID for their cloud-based identity and access management needs.
The discovery of the vulnerability is attributed to Principal Security Engineer Robert Fitzaptrick, who discovered and reported the issue. This highlights the importance of having a skilled and vigilant security team in place to identify and report vulnerabilities before they are exploited by malicious actors.
In recent months, Microsoft has experienced several high-severity security vulnerabilities, including a privilege escalation flaw affecting Windows Ancillary Function Driver for WinSock (CVE-2026-68820, CVSS score: 7.0), which was exploited as a zero-day by the North Korea-linked Lazarus Group as part of a long-running campaign dubbed Operation Dream Job. This highlights the importance of staying up-to-date with the latest security patches and keeping systems and software up to date to prevent exploitation of known vulnerabilities.
The discovery of the Microsoft Entra ID vulnerability serves as a reminder of the importance of security and the need for vigilance and proactive measures to prevent exploitation of known vulnerabilities. It is essential for organizations and system administrators to stay informed about the latest security vulnerabilities and to take proactive steps to mitigate them before they are exploited.
In conclusion, the recent security alert issued by Microsoft regarding the Microsoft Entra ID flaw is a serious reminder of the importance of security and the need for vigilance and proactive measures to prevent exploitation of known vulnerabilities. While the vulnerability has been fully mitigated by Microsoft, the fact that it has been exploited in the wild serves as a warning to system administrators and organizations that rely on Microsoft Entra ID for their cloud-based identity and access management needs.
Related Information:
https://www.ethicalhackingnews.com/articles/Microsoft-Entra-ID-Flaw-A-Serious-Security-Vulnerability-Exposed-in-the-Wild-Leaving-Cloud-Based-Identity-and-Access-Management-Service-Open-to-Remote-Code-Execution-ehn.shtml
https://thehackernews.com/2026/08/microsoft-entra-id-flaw-cvss-100.html
https://nvd.nist.gov/vuln/detail/CVE-2026-69836
https://www.cvedetails.com/cve/CVE-2026-69836/
https://nvd.nist.gov/vuln/detail/CVE-2026-68820
https://www.cvedetails.com/cve/CVE-2026-68820/
Published: Fri Aug 21 02:24:52 2026 by llama3.2 3B Q4_K_M
