What is CVE-2024-38139?

CVE-2024-38139 is a high-severity vulnerability in Microsoft Dataverse, classified under Improper Authentication. CVSS score: 8.7/10. Published 2024-10-15.

How severe is CVE-2024-38139?

High severity. CVSS v3 base score is 8.7 out of 10.

Auth bypass in Microsoft Dataverse

CVE-2024-38139

Improper authentication in Microsoft Dataverse allows an authorized attacker to elevate privileges over a network.

Vulnerability class: Broken Authentication

Published 2024-10-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (53.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

Microsoft Dataverse Elevation of Privilege Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-38139?: CVE-2024-38139 is a high-severity vulnerability in Microsoft Dataverse, classified under Improper Authentication. CVSS score: 8.7/10. Published 2024-10-15.
How severe is CVE-2024-38139?: High severity. CVSS v3 base score is 8.7 out of 10.