CVE-2025-0647 - CVE House
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Status published Unknown CVE-2025-0647

In certain Arm CPUs, a CPP RCTX instruction executed on...

Vulnerability Description

In certain Arm CPUs, a CPP RCTX instruction executed on one Processing Element (PE) may inhibit TLB invalidation when a TLBI is issued to the PE, either by the same PE or another PE in the shareability domain. In this case, the PE may retain stale TLB entries which should have been invalidated by the TLBI.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Neoverse-N2, Neoverse-V3AE, Neoverse-V3, Neoverse-V2, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-A710, C1-Premium, C1-Ultra
Vulnerable Versions:
0

Timeline

Official Publish: January 14th, 2026
Last Modified: January 20th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.