Back to Database
Status published
Medium
CVE-2021-40327
Trusted Firmware-M (TF-M) 1.4.0, when Profile Small is used, has...
Vulnerability Description
Trusted Firmware-M (TF-M) 1.4.0, when Profile Small is used, has incorrect access control. NSPE can access a secure key (held by the Crypto service) based solely on knowledge of its key ID. For example, there is no authorization check associated with the relationship between a caller and a key owner.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-40327
Credits & Attribution
No credits recorded in the NVD database.
References
More from trustedfirmware
View All →CVE-2022-47630
Trusted Firmware-A through 2.8 has an out-of-bounds read in the...
Unknown
0
CVE-2022-47549
An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable...
Unknown
0
CVE-2021-45450
In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv...
High
7.5
CVE-2021-44149
An issue was discovered in Trusted Firmware OP-TEE Trusted OS...
High
7.8
CVE-2021-43619
Trusted Firmware M 1.4.x through 1.4.1 has a buffer overflow...
High
7.8
Affected Vendor
trustedfirmware
View all reports →Affected Software
trusted firmware-m
Vulnerable Versions:
1.4.0
Timeline
Official Publish:
January 13th, 2022
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.