CVE-2026-65811
CVE-2026-65811 is a high-severity vulnerability in Microsoft Power Bi Report Server with a CVSS 3.x base score of 8.8. 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 8.8)
- EPSS exploit prediction: 1% (42nd percentile)
- Actively exploited: Not listed in CISA KEV
- 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-2026-65811?
- Improper input validation in Power BI allows an authorized attacker to execute code over a network.
- How severe is CVE-2026-65811?
- CVE-2026-65811 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-65811 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-65811?
- CVE-2026-65811 affects Microsoft Power Bi Report Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-65811?
- 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.
- When was CVE-2026-65811 published?
- CVE-2026-65811 was published on 2026-08-11 and last updated on 2026-08-19.
References
Affected products (1)
- cpe:2.3:a:microsoft:power_bi_report_server:*:*:*:*:*:*:*:*
More vulnerabilities in Microsoft Power Bi Report Server
- CVE-2023-21806 — High (CVSS 8.2): Power BI Report Server Spoofing Vulnerability
- CVE-2026-58647 — High (CVSS 8.0): Improper neutralization of input during web page generation ('cross-site scripting') in Power BI allows an authorized…
- CVE-2026-21229 — High (CVSS 8.0): Improper input validation in Power BI allows an authorized attacker to execute code over a network.
- CVE-2021-26859 — High (CVSS 7.7): Microsoft Power BI Information Disclosure Vulnerability
- CVE-2021-41372 — High (CVSS 7.6): A Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF) vulnerability exists when Power BI Report Server…
- CVE-2021-31984 — High (CVSS 7.6): Power BI Remote Code Execution Vulnerability
All CVEs affecting Microsoft Power Bi Report Server →
Other CWE-20 (Improper Input Validation) vulnerabilities
- CVE-2026-48056 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download video content. Versions prior to 2.5.0…
- CVE-2026-33267 — Critical (CVSS 10.0): Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.2.0…
- CVE-2026-47668 — Critical (CVSS 10.0): DbGate is cross-platform database manager. In versions 7.1.8 and prior, DbGate's JSON script runner (`POST…
- CVE-2026-16117 — Critical (CVSS 10.0): Impact: @fastify/http-proxy versions up to and including 11.5.0 fail to rewrite the request prefix when the prefix…
- CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
Browse all CWE-20 (Improper Input Validation) vulnerabilities →