CVE-2021-43619

HIGHNVD 7.87.8—Trending — 3 sources updated this week

7.8

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.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 38.1%
KEV: Not listed

Published

March 1, 2022

Last Modified

November 27, 2024

References (8)

cve@mitrehttps://developer.arm.com/support/arm-security-updates
cve@mitrehttps://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/
cve@mitrehttps://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.html
cve@mitrehttps://www.trustedfirmware.org
af854a3a-2127-422b-91ae-364da2661108https://developer.arm.com/support/arm-security-updates
af854a3a-2127-422b-91ae-364da2661108https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/
af854a3a-2127-422b-91ae-364da2661108https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.html
af854a3a-2127-422b-91ae-364da2661108https://www.trustedfirmware.org

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 11× in last 7d / 11× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 02:19 UTCEG score recompute
2026-05-26 02:19 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-43619?

CVE-2021-43619 is a high vulnerability published on March 1, 2022. 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 psafwuwrite caller from SPE or NSPE can overwrite stack memory locations.

When was CVE-2021-43619 disclosed?

CVE-2021-43619 was first published in the National Vulnerability Database on March 1, 2022, with the most recent update on November 27, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-43619 actively exploited?

CVE-2021-43619 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 38.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43619?

CVE-2021-43619 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-43619?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43619, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-43619

Explore →

Is Your Infrastructure Affected by CVE-2021-43619?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-43619

📅 Published

🔄 Last Modified

🔗 References (8)