CVE-2026-21229
CVE-2026-21229 is a high-severity vulnerability in Microsoft Power Bi Report Server with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: High (CVSS 3.x base score 8.0)
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-7344
- Weakness: CWE-20
- Affected product: Microsoft Power Bi Report Server
- Published:
- Last modified:
Description
Improper input validation in Power BI allows an authorized attacker to execute code over a network.
Frequently asked questions
- What is CVE-2026-21229?
- Improper input validation in Power BI allows an authorized attacker to execute code over a network.
- How severe is CVE-2026-21229?
- CVE-2026-21229 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-21229 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-21229?
- CVE-2026-21229 affects Microsoft Power Bi Report Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-21229?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-21229 have an EU (EUVD) identifier?
- Yes. CVE-2026-21229 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7344.
- When was CVE-2026-21229 published?
- CVE-2026-21229 was published on 2026-02-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:power_bi_report_server:*:*:*:*:*:*:*:*
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