Cyber Posture

CVE-2026-34327

High

Published: 07 May 2026

Published
07 May 2026
Modified
08 May 2026
KEV Added
Patch
CVSS Score 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS Score 0.0016 36.4th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-34327 is a high-severity Externally Controlled Reference to a Resource in Another Sphere (CWE-610) vulnerability in Microsoft Partner Center. Its CVSS base score is 8.2 (High).

Operationally, ranked at the 36.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-610

Limits impact of an externally controlled reference to a primary information resource by switching to an identified alternative.

NVD Description

Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)

Affected Products

microsoft
partner center
all versions

CVEs Like This One

CVE-2025-29814Same product: Microsoft Partner Center
CVE-2026-24303Same product: Microsoft Partner Center
CVE-2026-41107Same vendor: Microsoft
CVE-2026-27927Same vendor: Microsoft
CVE-2025-29795Same vendor: Microsoft
CVE-2026-32194Same vendor: Microsoft
CVE-2026-20810Same vendor: Microsoft
CVE-2025-21304Same vendor: Microsoft
CVE-2025-60724Same vendor: Microsoft
CVE-2025-25008Same vendor: Microsoft

References