CVE-2021-43619
HIGHCVSS 7.8/10EPSS 0.41%
Last modified
CVE-2021-43619 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Trustedfirmware | Trusted Firmware-M | 1.4.0 |
| Trustedfirmware | Trusted Firmware-M | 1.4.1 |
References
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/Patch, Third Party Advisory
- https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.htmlExploit, Patch, Third Party Advisory
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/Patch, Third Party Advisory
- https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.htmlExploit, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-43619?
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.
How severe is CVE-2021-43619?
CVE-2021-43619 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43619?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-43611Belledonne Belle-sip before 5.0.20 can crash applications su…7.5
- CVE-2021-43612In lldpd before 1.0.13, when decoding SONMP packets in the s…7.5
- CVE-2021-43615An issue was discovered in HddPassword in Insyde InsydeH2O w…8.2
- CVE-2021-43616The npm ci command in npm 7.x and 8.x through 8.1.3 proceeds…9.8
- CVE-2021-43617Laravel Framework through 8.70.2 does not sufficiently block…9.8
- CVE-2021-43618GNU Multiple Precision Arithmetic Library (GMP) through 6.2.…7.5
- CVE-2021-4362The Kiwi Social Share plugin for WordPress is vulnerable to …9.8
- CVE-2021-43620An issue was discovered in the fruity crate through 0.2.0 fo…7.5
- CVE-2021-43628Projectworlds Hospital Management System v1.0 is vulnerable …9.8
- CVE-2021-43629Projectworlds Hospital Management System v1.0 is vulnerable …9.8
- CVE-2021-4363The WP Quick FrontEnd Editor plugin for WordPress is vulnera…6.1
- CVE-2021-43630Projectworlds Hospital Management System v1.0 is vulnerable …8.8
Are you affected by CVE-2021-43619?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST