Power BI is widely used; network-based RCE via input validation could impact many orgs.
CVE-2026-21229
Power BI: network RCE via input validation by authorized attacker.
Is CVE-2026-21229 being exploited?
Not confirmed. CVE-2026-21229 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.94% probability of exploitation in the next 30 days.
How severe is CVE-2026-21229?
CVE-2026-21229 is rated High with a CVSS score of 8.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-21229?
Yes. A fix has been recorded for CVE-2026-21229. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-21229 affect?
CVE-2026-21229 affects Power BI. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-21229?
Apply updates when released; restrict Power BI network exposure.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution over the network via improper input validation in Power BI.
Patch when possible
- affected>= 1.6.0 and < 1.25.9508.3237
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.