What is CVE-2026-43274?

CVE-2026-43274 is a security advisory published by Microsoft Security Response Center (MSRC). mailbox: mchp-ipc-sbi: fix out-of-bounds access in mchp_ipc_get_cluster_aggr_irq()

Which CVE IDs does CVE-2026-43274 cover?

CVE-2026-43274 covers the following CVE IDs: CVE-2026-43274. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-43274?

CVE-2026-43274 has a CVSS v3 base score of 7.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-43274CVSS 7.1

mailbox: mchp-ipc-sbi: fix out-of-bounds access in mchp_ipc_get_cluster_aggr_irq()

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-43274 →