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    CVE-2025-0647

    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.

    Published:Jan 14, 2026
    Last Modified:Jan 26, 2026
    EPS:Jan 14, 2026
    EPSS Score:0.00015
    CVSS Score:7.9

    Affected Products

    Vendor
    Arm
    Product
    C1-premium
    Vendor
    Arm
    Product
    C1-premium Firmware
    Vendor
    Arm
    Product
    C1-ultra
    Vendor
    Arm
    Product
    C1-ultra Firmware
    Vendor
    Arm
    Product
    Cortex-a710
    Vendor
    Arm
    Product
    Cortex-a710 Firmware
    Vendor
    Arm
    Product
    Cortex-x2
    Vendor
    Arm
    Product
    Cortex-x2 Firmware
    Vendor
    Arm
    Product
    Cortex-x3
    Vendor
    Arm
    Product
    Cortex-x3 Firmware
    Vendor
    Arm
    Product
    Cortex-x4
    Vendor
    Arm
    Product
    Cortex-x4 Firmware
    Vendor
    Arm
    Product
    Cortex-x925
    Vendor
    Arm
    Product
    Cortex-x925 Firmware
    Vendor
    Arm
    Product
    Neoverse-n2
    Vendor
    Arm
    Product
    Neoverse-n2 Firmware
    Vendor
    Arm
    Product
    Neoverse-v2
    Vendor
    Arm
    Product
    Neoverse-v2 Firmware
    Vendor
    Arm
    Product
    Neoverse-v3
    Vendor
    Arm
    Product
    Neoverse-v3 Firmware
    Vendor
    Arm
    Product
    Neoverse-v3ae
    Vendor
    Arm
    Product
    Neoverse-v3ae Firmware
    Vendor
    Arm
    Product
    Neoverse N2

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High