CVE-2021-40327

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 65.8% of scored records. A rank, not a probability.

NVD base score

5.9 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-01-13 15:31Z4 YR AGO

Last updated

2024-08-04 02:27Z2 YR AGO

Reserved

2021-08-30

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-862Missing AuthorizationClass

Data version

5.1

Document digest

8f9284bdacaee0fa63cf70363d528af2e830dfff85bf4e159b6a60add3764c61

• developer.arm.comhttps://developer.arm.com/support/arm-security-updatesx_refsource_MISC
• git.trustedfirmware.orghttps://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/x_refsource_MISC
• tf-m-user-guide.trustedfirmware.orghttps://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.htmlx_refsource_CONFIRM