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TI-2021-19487 Aliases CVE-2021-43619GHSA-w8p4-6wv2-jvj3

Trusted Firmware M 1.4.x through 1.4.1 has a buffer overflow issue in the Firmware Update…

Priority LOW 34CWE-120Published · 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-120 and the CVSS impact.

Summary

Trusted Firmware M 1.4.x through 1.4.1 has a buffer overflow issue in the Firmware Update partition. In the IPC model, a psa_fwu_write caller from SPE or NSPE can overwrite stack memory locations.

Why it matters now

EPSS 0.0042 36th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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:trustedfirmware:trusted_firmware-m:1.4.0:*:*:*:*:*:*:*1.4.0VulnerableOP-TEE
cpe:2.3:o:trustedfirmware:trusted_firmware-m:1.4.1:*:*:*:*:*:*:*1.4.1VulnerableOP-TEE
  • cpe:2.3:o:trustedfirmware:trusted_firmware-m:1.4.0:*:*:*:*:*:*:* Versions 1.4.0 Vulnerable ·OP-TEE
  • cpe:2.3:o:trustedfirmware:trusted_firmware-m:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·OP-TEE

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43619
  2. 2026-10-03 Alias added: GHSA-w8p4-6wv2-jvj3

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • TI-2021-09019 In Arm Trusted Firmware M through 1.2, the NS world may trigger a system halt, an… KEVCVSS 3.1MEDIUM 5.5
  • TI-2023-21113 In Trusted Firmware-M through TF-Mv1.8.0, for platforms that integrate the CryptoCell… CVSS 3.1HIGH 7.5
  • TI-2021-12009 In Trusted Firmware-M through 1.3.0, cleaning up the memory allocated for a multi-part… CVSS 3.1HIGH 7.5
  • TI-2021-17401 Trusted Firmware-M (TF-M) 1.4.0, when Profile Small is used, has incorrect access control. CVSS 3.1MEDIUM 5.9
  • TI-2023-28354 An issue was discovered in Trusted Firmware-M through 2.0.0. CVSS 3.1MEDIUM 4.7

Sources

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