CVE-2025-0647

arm-trusted-firmware: In certain Arm CPUs, a CPP RCTX instruction executed on one Processing Element (PE) may inhibit TLB invalidation when...

CVE-2025-0647 is fixed in arm-trusted-firmware on 1 platform by DEBIAN-CVE-2025-0647 (version 2.12.16+dfsg-1), released January 14, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.9
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
5th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
arm-trusted-firmware · Debian 14 2.12.16+dfsg-1 DEBIAN-CVE-2025-0647 Jan 14, 2026

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