synced 13 MIN AGO
01 Record

CVE-2021-31612

The Bluetooth Classic implementation on Zhuhai Jieli AC690X devices does not properly handle the reception of an oversized LMP packet greater than 17 bytes during the LMP auto rate procedure, allowing

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

The Bluetooth Classic implementation on Zhuhai Jieli AC690X devices does not properly handle the reception of an oversized LMP packet greater than 17 bytes during the LMP auto rate procedure, allowing

03 Exploitation and scoring

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
0.53% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 44.6% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/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.

04 Metadata

Published
2021-09-07 06:32Z5 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
No CWE assigned
Data version
5.1
Document digest
89cbcff8c49120bb2c11feaff73fb3638c4afd9431c39c092856995346faefa2

05 Affected products

VendorProductVersionsPlatforms
zh-jieliac6901Not specified—
zh-jieliac6901_firmwareNot specified—
zh-jieliac6902Not specified—
zh-jieliac6902_firmwareNot specified—
zh-jieliac6903Not specified—
zh-jieliac6903_firmwareNot specified—
zh-jieliac6904Not specified—
zh-jieliac6904_firmwareNot specified—
zh-jieliac6905Not specified—
zh-jieliac6905_firmwareNot specified—
zh-jieliac6907Not specified—
zh-jieliac6907_firmwareNot specified—
zh-jieliac6908Not specified—
zh-jieliac6908_firmwareNot specified—
zh-jieliac690nNot specified—
zh-jieliac690n_firmwareNot specified—
zh-jieliac692nNot specified—
zh-jieliac692n_firmwareNot specified—
zh-jieliac6997Not specified—
zh-jieliac6997_firmwareNot specified—
zh-jieliac6998Not specified—
zh-jieliac6998_firmwareNot specified—
zh-jieliac6999Not specified—
zh-jieliac6999_firmwareNot specified—

06 References