SecuriTricks - CVE-2025-0647

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.

Product(s) Impacted

Vendor	Product	Versions
Arm	Arm Cpu	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-226

Sensitive Information in Resource Not Removed Before Reuse

The product releases a resource such as memory or a file so that it can be made available for reuse, but it does not clear or "zeroize" the information contained in the resource before the product performs a critical state transition or makes the resource available for reuse by other entities.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	arm	arm_cpu	/	/	/	/	/	/	/	/

References

https://developer.arm.com/documentation/111546

CVSS Score

5.4 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

View Vector String

Timeline

Published: Jan. 14, 2026, 11:15 a.m.
Last Modified: Jan. 15, 2026, 9:16 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2025-0647