What is the CVSS score of CVE-2025-30389?

CVE-2025-30389 has a CVSS 3.1 base score of 8.7 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N. EPSS exploitation probability: 0.3%.

Which versions of Azure Ai Bot Service are affected by CVE-2025-30389?

Organizations using Improper authorization in Azure Bot Framework SDK face significant risk from CVE-2025-30389 rated CVSS 8.7.

How to fix or mitigate CVE-2025-30389?

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

Azure Ai Bot Service CVE-2025-30389

HIGH

Improper Authorization (CWE-285)

2025-04-30 secure@microsoft.com

Microsoft Authentication Bypass Azure Ai Bot Service

8.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.7 HIGH

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

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:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:39 vuln.today

CVE Published

Apr 30, 2025 - 18:15 nvd

HIGH 8.7

DescriptionCVE.org

Improper authorization in Azure Bot Framework SDK allows an unauthorized attacker to elevate privileges over a network.

AnalysisAI

Improper authorization in Azure Bot Framework SDK allows an unauthorized attacker to elevate privileges over a network. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-285. Improper authorization in Azure Bot Framework SDK allows an unauthorized attacker to elevate privileges over a network. 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.