High severity8.1NVD Advisory· Published Jun 7, 2017· Updated Jun 17, 2026

CVE-2017-7563

Description

In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1, allowing attackers to bypass the MT_EXECUTE_NEVER protection mechanism. This issue occurs because of inconsistency in the number of execute-never bits (one bit versus two bits).

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Arm/Arm Trusted Firmware
cpe:2.3:o:trustedfirmware:trusted_firmware-a:*:*:*:*:*:*:*:*
Range: <=1.3

Patches

Vulnerability mechanics

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