CVE-2021-43619

HIGH

CVSS v3.1: 7.8 · EPSS: 0.0017 (38.2 percentile)

No user interactionBuffer Overflow

Source data as of:

At a glance

Severity
HIGH
CVSS
7.8 v3.1 · NVD
EPSS
0.0017 (38.2 percentile) · FIRST.org
CISA KEV
No
Type
Buffer Overflow · NVD CWE
Attack conditions (CVSS vector)
No user interaction · Source: NVD Vector
Affected vendors
trustedfirmware
Published
2022-03-01 · Modified: 2026-06-05
References
Jump to references (4)

CVSS / EPSS / KEV

CVSS v3.1 7.8 / 10 HIGH Source: NVD
EPSS 0.0017 38.2 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

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.

Record details

CVE ID
CVE-2021-43619
CVSS (v3.1)
7.8 (HIGH)
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore
1.8
Impact subscore
5.9
EPSS
0.0017 (38.2 percentile) — 2026-06-06
CISA KEV
No
Weakness (CWE)
CWE-120
Affected vendors
trustedfirmware
Affected configurations (CPE)
2
Published
2022-03-01
Modified
2026-06-05
Status
Modified

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Related records

Other records sharing a factual facet, for cross-reference. A descriptive neighbourhood — ordering does not imply priority and is not a recommendation.

Same affected vendor

CVE-2019-1010292 CRITICAL CVSS 9.8 CVE-2019-1010293 CRITICAL CVSS 9.8 CVE-2019-1010295 CRITICAL CVSS 9.8 CVE-2019-1010296 CRITICAL CVSS 9.8

Same weakness type (CWE)

CVE-2023-45199 CRITICAL CVSS 9.8 CVE-2025-12686 CRITICAL CVSS 9.8 CVE-2026-34875 CRITICAL CVSS 9.8 CVE-2023-43615 HIGH CVSS 7.5

Published the same year

CVE-2021-44732 CRITICAL CVSS 9.8 CVE-2021-44149 HIGH CVSS 7.8 CVE-2021-45450 HIGH CVSS 7.5 CVE-2021-36133 HIGH CVSS 7.1
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