What is GHSA-c89r-fxpx-x3w6?

GHSA-c89r-fxpx-x3w6 is a security advisory published by GitHub Security Advisories with Critical severity. Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an...

Which CVE IDs does GHSA-c89r-fxpx-x3w6 cover?

GHSA-c89r-fxpx-x3w6 covers the following CVE IDs: CVE-2026-62873. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-c89r-fxpx-x3w6?

GHSA-c89r-fxpx-x3w6 has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-c89r-fxpx-x3w6CriticalCVSS 9.8

Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an...

Vendor

GitHub Security Advisories

Published

August 7, 2026

Last Modified

August 7, 2026

🔗 CVE IDs covered (1)

CVE-2026-62873 →

📋 Description

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

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-62873
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62873
https://github.com/advisories/GHSA-c89r-fxpx-x3w6