What is CVE-2024-21402?

CVE-2024-21402 is a high-severity vulnerability in Microsoft 365_apps, classified under Improper Authorization. CVSS score: 7.1/10. Published 2024-02-13.

How severe is CVE-2024-21402?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2024-21402 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Microsoft 365_apps

CVE-2024-21402

Microsoft Outlook Elevation of Privilege Vulnerability

EPSS: 0.005 (37.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Microsoft 365_apps
Microsoft 365 Apps For Enterprise — versions 16.0.1

Weakness classification (CWE)

CWE-285 — Improper Authorization

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

secure@microsoft.com (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-21402?: CVE-2024-21402 is a high-severity vulnerability in Microsoft 365_apps, classified under Improper Authorization. CVSS score: 7.1/10. Published 2024-02-13.
How severe is CVE-2024-21402?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2024-21402 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.