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Vulnerability record · CVE-2026-21229 · published 10 February 2026

CVE-2026-21229: Microsoft power bi report server improper input validation vulnerability

Microsoft · Power Bi Report Server

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

8.8 CVSS 3.1 High EPSS 0.94% · top 40.7% CWE-20 · Improper input validation
8.8CVSS 3.1 base score
0.94%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
19 Aug 2026Last modified by NVD

Description

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

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21229 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2026-65811Microsoft power bi report server improper input validation vulnerabilityImproper input validation in Power BI allows an authorized attacker to execute code over a network.EPSS 0.96%8.8CVE-2024-43481Microsoft power bi report server cross-site scripting vulnerabilityPower BI Report Server Spoofing VulnerabilityEPSS 1.8%8.2CVE-2023-21806Microsoft power bi report server cross-site scripting vulnerabilityPower BI Report Server Spoofing VulnerabilityEPSS 0.78%7.7CVE-2021-26859Microsoft power bi report server vulnerabilityMicrosoft Power BI Information Disclosure VulnerabilityEPSS 3.0%7.6CVE-2021-41372Microsoft power bi report server cross-site scripting vulnerabilityA Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF) vulnerability exists when Power BI Report Server Template file (pbix) containing H…EPSS 0.68%7.6CVE-2021-31984Microsoft power bi report server vulnerabilityPower BI Remote Code Execution VulnerabilityEPSS 1.9%6.8CVE-2020-1173Microsoft power bi report server improper input validation vulnerabilityA spoofing vulnerability exists in Microsoft Power BI Report Server in the way it validates the content-type of uploaded attachments. An authenticate…EPSS 2.5%6.1CVE-2019-1332Microsoft power bi report server cross-site scripting vulnerabilityA cross-site scripting (XSS) vulnerability exists when Microsoft SQL Server Reporting Services (SSRS) does not properly sanitize a specially-crafted …EPSS 8.7%

Source: NIST National Vulnerability Database (record CVE-2026-21229), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.