High severity7.8NVD Advisory· Published Nov 12, 2020· Updated Jun 17, 2026
CVE-2020-16273
CVE-2020-16273
Description
In Arm software implementing the Armv8-M processors (all versions), the stack selection mechanism could be influenced by a stack-underflow attack in v8-M TrustZone based processors. An attacker can cause a change to the stack pointer used by the Secure World from a non-secure application if the stack is not initialized. This vulnerability affects only the software that is based on Armv8-M processors with the Security Extension.
Affected products
3- cpe:2.3:o:arm:armv8-m_firmware:*:*:*:*:*:*:*:*
- Arm/Armv8-M processorsdescription
- Range: all versions
Patches
Vulnerability mechanics
References
1- developer.arm.com/support/arm-security-updates/armv8-m-stack-sealingnvdVendor Advisory
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