What is CVE-2025-21380?

CVE-2025-21380 is a high-severity vulnerability in Microsoft Azure Marketplace, classified under Improper Access Control. CVSS score: 8.8/10. Published 2025-01-09.

How severe is CVE-2025-21380?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2025-21380 known to be exploited?

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

Vulnerability in Microsoft Azure Marketplace

CVE-2025-21380

Improper access control in Azure SaaS Resources allows an authorized attacker to disclose information over a network.

EPSS: 0.015 (71.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-284 — Improper Access Control

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

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

Frequently asked questions

What is CVE-2025-21380?: CVE-2025-21380 is a high-severity vulnerability in Microsoft Azure Marketplace, classified under Improper Access Control. CVSS score: 8.8/10. Published 2025-01-09.
How severe is CVE-2025-21380?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2025-21380 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.