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CVE-2026-65818

9.9, critical

Microsoft Power Platform Server-Side Request Forgery Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.9, critical critical CVSS v3.1
EPSS, next 30 days
0.6% higher than 49.2% of scored CVEs
Exploitation
No public evidence
Published
3 Sept 2026a month ago

Description

Server-side request forgery (ssrf) in Power Automate allows an authorized attacker to elevate privileges over a network.

Details

Vendor
Microsoft
Product
Microsoft Power Platform
Weakness
CWE-918 (opens in a new tab)
Status
Analyzed
Updated
8 Sept 2026
Assigner
secure@microsoft.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Microsoft CVEs

Every Microsoft CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-96951 Microsoft Windows Command Injection Vulnerability KEV EPSS 2% 8.8, high
  • CVE-2026-81963 Microsoft Windows Link Following Vulnerability KEV EPSS 0.4% 7.8, high
  • CVE-2026-85880 Microsoft Windows Heap-Based Buffer Overflow Vulnerability KEV EPSS 4% 7.8, high
  • CVE-2026-65660 Microsoft SharePoint Code Injection Vulnerability KEV EPSS 2% 8.8, high
  • CVE-2026-68820 Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability KEV EPSS 0.3% 7, high
  • CVE-2026-50522 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability KEV EPSS 3% 9.8, critical
  • CVE-2026-56155 Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability KEV EPSS 0.3% 7.8, high
  • CVE-2026-56164 Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability KEV EPSS 1% 9.8, critical

Beyond this page

Is CVE-2026-65818 in your network?

This page tells you how dangerous CVE-2026-65818 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-65818 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.