CVE-2021-3966 — CRITICAL (9.6)

Q: What is CVE-2021-3966?

CVE-2021-3966 is a vulnerability with a CVSS score of 9.6 (CRITICAL). usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem.

Q: How severe is CVE-2021-3966?

CVE-2021-3966 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-3966?

Check the references section above for vendor advisories and patch information. Affected products include: Zephyrproject Zephyr.

Vulnerability Description

usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem.

CVSS Score

9.6

CRITICAL

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Zephyrproject	Zephyr	< 3.0.0

Related Weaknesses (CWE)

CWE-120 CWE-122

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hfxq-3w6x-Third Party Advisory
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hfxq-3w6x-Third Party Advisory

FAQ

What is CVE-2021-3966?

CVE-2021-3966 is a vulnerability with a CVSS score of 9.6 (CRITICAL). usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem.

How severe is CVE-2021-3966?

CVE-2021-3966 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-3966?

Check the references section above for vendor advisories and patch information. Affected products include: Zephyrproject Zephyr.