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
Product
Action
Vendor
Arm
Product
C1-premium
Arm
C1-premium
Vendor
Arm
Product
C1-premium Firmware
Arm
C1-premium Firmware
Vendor
Arm
Product
C1-ultra
Arm
C1-ultra
Vendor
Arm
Product
C1-ultra Firmware
Arm
C1-ultra Firmware
Vendor
Arm
Product
Cortex-a710
Arm
Cortex-a710
Vendor
Arm
Product
Cortex-a710 Firmware
Arm
Cortex-a710 Firmware
Vendor
Arm
Product
Cortex-x2
Arm
Cortex-x2
Vendor
Arm
Product
Cortex-x2 Firmware
Arm
Cortex-x2 Firmware
Vendor
Arm
Product
Cortex-x3
Arm
Cortex-x3
Vendor
Arm
Product
Cortex-x3 Firmware
Arm
Cortex-x3 Firmware
Vendor
Arm
Product
Cortex-x4
Arm
Cortex-x4
Vendor
Arm
Product
Cortex-x4 Firmware
Arm
Cortex-x4 Firmware
Vendor
Arm
Product
Cortex-x925
Arm
Cortex-x925
Vendor
Arm
Product
Cortex-x925 Firmware
Arm
Cortex-x925 Firmware
Vendor
Arm
Product
Neoverse-n2
Arm
Neoverse-n2
Vendor
Arm
Product
Neoverse-n2 Firmware
Arm
Neoverse-n2 Firmware
Vendor
Arm
Product
Neoverse-v2
Arm
Neoverse-v2
Vendor
Arm
Product
Neoverse-v2 Firmware
Arm
Neoverse-v2 Firmware
Vendor
Arm
Product
Neoverse-v3
Arm
Neoverse-v3
Vendor
Arm
Product
Neoverse-v3 Firmware
Arm
Neoverse-v3 Firmware
Vendor
Arm
Product
Neoverse-v3ae
Arm
Neoverse-v3ae
Vendor
Arm
Product
Neoverse-v3ae Firmware
Arm
Neoverse-v3ae Firmware
Vendor
Arm
Product
Neoverse N2
Arm
Neoverse N2
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
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
