Microsoft Partner Center Improper Access Control Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-02-25
• Critical severity: CVSS 9.8

[ Description ]Official description

An improper access control vulnerability in Partner.Microsoft.com allows an a unauthenticated attacker to elevate privileges over a network.

CISA: Microsoft Partner Center contains an improper access control vulnerability that allows an attacker to escalate privileges.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 18 Mar 2025): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49035Vendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource