Improper input validation in Microsoft Power Bi Report Server
CVE-2026-21229
Improper input validation in Power BI allows an authorized attacker to execute code over a network.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- Microsoft Power Bi Report Server — versions 1.6.0
- Microsoft Power Bi Report Server
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21229 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-21229?
- CVE-2026-21229 is a high-severity vulnerability in Microsoft Power Bi Report Server, classified under Improper Input Validation. CVSS score: 8.0/10. Published 2026-02-10.
- How severe is CVE-2026-21229?
- High severity. CVSS v3 base score is 8.0 out of 10.