What is CVE-2026-26125?

CVE-2026-26125 is a high-severity vulnerability in Microsoft Payment Orchestrator Service, classified under Missing Authentication for Critical Function. CVSS score: 8.6/10. Published 2026-03-05.

How severe is CVE-2026-26125?

High severity. CVSS v3 base score is 8.6 out of 10.

Auth bypass in Microsoft Payment Orchestrator Service

CVE-2026-26125

Payment Orchestrator Service Elevation of Privilege Vulnerability

Vulnerability class: Broken Authentication

Published 2026-03-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (65.2th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.011 · change: -0.000

Affected products

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26125 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-26125?: CVE-2026-26125 is a high-severity vulnerability in Microsoft Payment Orchestrator Service, classified under Missing Authentication for Critical Function. CVSS score: 8.6/10. Published 2026-03-05.
How severe is CVE-2026-26125?: High severity. CVSS v3 base score is 8.6 out of 10.