Arm C1 Ultra vulnerabilities

3 vulnerabilities

Known vulnerabilities in Arm C1 Ultra, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

7.9CVE-2025-0647armc1-premium_firmware+11
EPSS score
0.17%
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.9.1CVE-2025-10263alpinexen+191
EPSS score
0.54%
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 & A76A may allow writes to resources owned by a higher exception level.5.1CVE-2024-7881armc1-premium_firmware+13
EPSS score
0.20%
An unprivileged context can trigger a data memory-dependent prefetch engine to fetch the contents of a privileged location and consume those contents as an address that is also dereferenced.