What is the CVSS score of CVE-2025-55244?

CVE-2025-55244 has a CVSS 3.1 base score of 9.0 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Azure Ai Bot Service are affected by CVE-2025-55244?

CVE-2025-55244 presents critical security risk, a improper access control vulnerability rated CVSS 9.0.

How to fix or mitigate CVE-2025-55244?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Azure Ai Bot Service CVE-2025-55244

CRITICAL

Improper Access Control (CWE-284)

2025-09-04 secure@microsoft.com

Authentication Bypass Microsoft Azure Ai Bot Service

9.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.0 CRITICAL

AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:10 vuln.today

CVE Published

Sep 04, 2025 - 23:15 nvd

CRITICAL 9.0

DescriptionCVE.org

Azure Bot Service Elevation of Privilege Vulnerability

AnalysisAI

Azure Bot Service Elevation of Privilege Vulnerability. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-284. Affected products include: Microsoft Azure Ai Bot Service.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.