CVE-2021-31611

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

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 29.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2021-09-07 06:03Z4 YR AGO

Last updated

2024-08-03 23:03Z2 YR AGO

Reserved

2021-04-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-667Improper LockingClass

Data version

5.1

Document digest

cba4944c0ddc1df1df24b519a7a56d5969fd46e5de0dcb170547ae702975e1d5

• www.zh-jieli.comhttp://www.zh-jieli.com/product/68-cn.htmlx_refsource_MISC
• launchstudio.bluetooth.comhttps://launchstudio.bluetooth.com/ListingDetails/58628x_refsource_MISC
• launchstudio.bluetooth.comhttps://launchstudio.bluetooth.com/ListingDetails/19746x_refsource_MISC
• dl.packetstormsecurity.nethttps://dl.packetstormsecurity.net/papers/general/braktooth.pdfx_refsource_MISC