What is the CVSS score of CVE-2026-21229?

CVE-2026-21229 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Power Bi Report Server are affected by CVE-2026-21229?

A high-severity vulnerability in Power BI (CVE-2026-21229) allows authenticated attackers to execute arbitrary code remotely, potentially compromising data analytics infrastructure and enabling…. A patch is available.

How to fix or mitigate CVE-2026-21229?

Within 24 hours: Inventory all Power BI instances and document authorized user access; notify Power BI administrators to monitor for suspicious activity. Within 7 days: Implement network segmentation to restrict Power BI traffic, apply WAF rules to block malicious input patterns, and disable Power BI sharing with external users if not business-critical. Within 30 days: Establish enhanced logging and monitoring for Power BI activities, conduct access reviews to minimize authorized users, and prepare immediate patching procedures once vendor updates become available.

Power Bi Report Server CVE-2026-21229

HIGH

Improper Input Validation (CWE-20)

2026-02-10 secure@microsoft.com

Code Injection Power Bi Report Server

8.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.0 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 10, 2026 - 18:16 nvd

HIGH 8.0

DescriptionCVE.org

Improper input validation in Power BI allows an authorized attacker to execute code over a network.

AnalysisAI

Improper input validation in Power BI allows an authorized attacker to execute code over a network. [CVSS 8.0 HIGH]

Technical ContextAI

Classified as CWE-20 (Improper Input Validation). Affects Power Bi Report Server. Improper input validation in Power BI allows an authorized attacker to execute code over a network.