CVE-2025-59246: Elevation of Privilege in Microsoft Entra
Platform
other
Component
microsoft-entra
CVE-2025-59246 represents a critical elevation of privilege vulnerability within Microsoft Entra. Successful exploitation could allow an attacker to gain unauthorized access and escalate their privileges, potentially compromising the entire environment. This vulnerability affects versions of Microsoft Entra less than or equal to the currently known affected range. Microsoft has not yet released a specific fixed version, requiring immediate attention to mitigation strategies.
Impact and Attack Scenarios
The impact of CVE-2025-59246 is severe due to its potential for privilege escalation. An attacker who successfully exploits this vulnerability could bypass existing security controls and gain administrative access to Microsoft Entra. This could lead to unauthorized access to sensitive data, modification of user accounts and permissions, and ultimately, complete control over the identity and access management system. The blast radius extends to any application or service relying on Microsoft Entra for authentication and authorization, potentially impacting the entire organization. While specific exploitation details remain limited, the criticality suggests a potential for widespread impact if exploited.
Exploitation Context
CVE-2025-59246 was published on 2025-10-09. The vulnerability's criticality (CVSS 9.8) indicates a high probability of exploitation. As of this writing, there are no publicly available proof-of-concept exploits. The vulnerability has been added to the CISA KEV catalog, signifying a potential risk to critical infrastructure. Active campaigns are not yet confirmed, but the severity warrants proactive monitoring and mitigation.
Threat Intelligence
Exploit Status
EPSS
0.18% (40% percentile)
CISA SSVC
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- Low — no special conditions required. Attacker can exploit reliably without depending on rare configurations or timing.
- Privileges Required
- None — unauthenticated. No login or credentials needed to exploit.
- User Interaction
- None — attack is automatic and silent. Victim does nothing: no click, no file open.
- Scope
- Unchanged — impact is limited to the vulnerable component itself.
- Confidentiality
- High — complete confidentiality loss. Attacker can read all data: credentials, keys, personal data.
- Integrity
- High — attacker can write, modify, or delete any data: databases, config files, or code.
- Availability
- High — complete crash or resource exhaustion. Full denial of service.
Affected Software
Weakness Classification (CWE)
Timeline
- Reserved
- Published
- Modified
- EPSS updated
Mitigation and Workarounds
Given the lack of a specific fixed version at the time of publication, immediate mitigation steps are crucial. Organizations should review Microsoft's security advisories for recommended workarounds, which may include restricting access to specific Entra ID features or implementing stricter authentication policies. Consider implementing multi-factor authentication (MFA) for all administrative accounts to add an extra layer of security. Regularly monitor Entra ID logs for suspicious activity and implement robust auditing practices. Once a patch is released, prioritize its deployment and verify functionality after upgrade by confirming that user access and permissions remain as expected.
How to fix
Apply the security updates provided by Microsoft to correct the privilege escalation vulnerability in Azure Entra ID. See the Microsoft security advisory for more details and specific instructions.
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Frequently asked questions
What is CVE-2025-59246 — Elevation of Privilege in Microsoft Entra?
CVE-2025-59246 is a critical vulnerability in Microsoft Entra that allows an attacker to escalate privileges and gain unauthorized access. It affects versions less than or equal to the currently known affected range, posing a significant risk to identity and access management.
Am I affected by CVE-2025-59246 in Microsoft Entra?
If you are using Microsoft Entra and your version is less than or equal to the currently known affected range, you are potentially affected. Review Microsoft's security advisories to confirm your specific version's status.
How do I fix CVE-2025-59246 in Microsoft Entra?
A specific fixed version is not yet available. Implement recommended workarounds from Microsoft's security advisories, such as restricting access and enabling MFA. Prioritize patching once a fix is released.
Is CVE-2025-59246 being actively exploited?
Active exploitation is not yet confirmed, but the high severity warrants proactive monitoring and mitigation. Stay informed about any emerging threat intelligence related to this vulnerability.
Where can I find the official Microsoft advisory for CVE-2025-59246?
Refer to the official Microsoft Security Response Center (MSRC) website for the latest advisory and details regarding CVE-2025-59246: [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59246]
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