CVE-2026-62873

CRITICAL

CVE: CVE-2026-62873 - Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over...Sign in to save

CVSS

9.8

CVSS v3.1

EPSS

0.3%

Exploit Prediction Score

Published

August 7, 2026

Exploitability

EPSS probability 0.3%

Description

Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network.

Weaknesses

CWE-347

Affected Packages

No package data available.

Aliases

CVE-2026-62873

Related references

Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62873