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Arm CPU Privilege Escalation Vulnerability - 20260611001

Overview

An issue has been identified in some Arm-based CPUs which may allow writes to resources owned by a higher exception level, potentially allowing privilege escalation.

What is vulnerable?

Product(s) Affected CVE CVSS Severity
Arm C1-Ultra, C1-Premium
Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse N2, Neoverse N1
Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 & X1C, Cortex-A710, Cortex-A78, A78AE & A78C, Cortex-A77, Cortex-A76 & A76AE
CVE-2025-10263 9.1 Critical

What has been observed?

The WASOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.

Recommendation

The WASOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):