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TI-2020-12799 Aliases CVE-2020-16273GHSA-4j52-x36j-w2jw

In Arm software implementing the Armv8-M processors (all versions), the stack selection…

Priority LOW 34CWE-191Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-191 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.00345 28th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:arm:armv8-m_firmware:*:*:*:*:*:*:*:*all versionsVulnerableArm
cpe:2.3:h:arm:armv8-m:-:*:*:*:*:*:*:*not specified by NVDRunning onArm
  • cpe:2.3:o:arm:armv8-m_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Arm
  • cpe:2.3:h:arm:armv8-m:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arm

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16273
  2. 2026-10-03 Alias added: GHSA-4j52-x36j-w2jw

References

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences