CVE-2025-29814
Published: 21 March 2025
Summary
CVE-2025-29814 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Microsoft Partner Center. Its CVSS base score is 9.3 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 4.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-24 (Access Control Decisions) and AC-3 (Access Enforcement).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Enforces approved authorizations for access to system resources, directly mitigating improper authorization that enables privilege escalation.
Applies least privilege to restrict access to only necessary permissions, preventing escalation from initial authorized access.
Authorizes access to resources based on defined personnel or roles, addressing flaws in authorization decision-making.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The CVE describes an improper authorization vulnerability in a network-accessible application that directly enables privilege escalation with high integrity/availability impact.
NVD Description
Improper authorization in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network.
Deeper analysisAI
CVE-2025-29814 is an improper authorization vulnerability affecting Microsoft Partner Center. Published on 2025-03-21, it carries a CVSS v3.1 base score of 9.3 (AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H) and is associated with CWE-20 (Improper Input Validation) and NVD-CWE-noinfo.
An authorized attacker can exploit this vulnerability over a network with low complexity, requiring no privileges but some user interaction. Successful exploitation enables privilege escalation, resulting in high integrity and availability impacts across the changed scope, with no confidentiality impact.
Mitigation details are available in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29814.
Details
- CWE(s)