What is CVE-2021-31787?

CVE-2021-31787 is a medium-severity vulnerability in Actions-Semi Ats2815, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2021-11-30.

How severe is CVE-2021-31787?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2021-31787 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Actions-Semi Ats2815

CVE-2021-31787

The Bluetooth Classic implementation on Actions ATS2815 chipsets does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and shutdown of a device by flooding the target device with LMP_features_res packets.

EPSS: 0.005 (39.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

Matheus-Garbelini/braktooth_

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_MISC, Broken Link)

Frequently asked questions

What is CVE-2021-31787?: CVE-2021-31787 is a medium-severity vulnerability in Actions-Semi Ats2815, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2021-11-30.
How severe is CVE-2021-31787?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-31787 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.