Authenticated RCE in Microsoft Power BI (widely used enterprise product) with high CVSS likely to impact many organizations.
CVE-2026-65811
Authenticated remote code execution in Microsoft Power BI via improper input validation.
Is CVE-2026-65811 being exploited?
Not confirmed. CVE-2026-65811 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 0.53% probability of exploitation in the next 30 days.
How severe is CVE-2026-65811?
CVE-2026-65811 is rated High with a CVSS score of 8.8. 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-2026-65811?
Yes. A fix has been recorded for CVE-2026-65811. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-65811 affect?
CVE-2026-65811 affects Microsoft Power BI. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-65811?
Apply vendor patch when released; restrict Power BI network access and monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated remote code execution over network; attacker can run arbitrary code, access/exfiltrate data, deploy malware, and pivot.
Immediate action required
- affected>= 1.6.0 and < 1.26.9682.1442
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.