Vulnerability Details : CVE-2021-40327

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.
Published 2022-01-13 16:15:08
Updated 2022-01-25 14:35:47
Source MITRE
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-40327

EPSS FAQ
0.21%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-40327

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.6
 LOW AV:N/AC:H/Au:N/C:P/I:N/A:N
4.9
2.9
 NIST
5.9
 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
2.2
3.6
 NIST

CWE ids for CVE-2021-40327

  • The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-40327

Products affected by CVE-2021-40327

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