CVE-2026-62873

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

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-25)

CWE

CWE-347

Published

2026-08-07

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• microsoft:windows_admin_center

References

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

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