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HIGH · 8.2

CVE-2021-3861

The RNDIS USB device class includes a buffer overflow vulnerability. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-...

Vulnerability Description

The RNDIS USB device class includes a buffer overflow vulnerability. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hvfp-w4h8-gxvj

CVSS Score

8.2

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
ZephyrprojectZephyr>= 2.6.0, <= 2.7.1

Related Weaknesses (CWE)

CWE-122CWE-787

References

FAQ

What is CVE-2021-3861?

CVE-2021-3861 is a vulnerability with a CVSS score of 8.2 (HIGH). The RNDIS USB device class includes a buffer overflow vulnerability. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-...

How severe is CVE-2021-3861?

CVE-2021-3861 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3861?

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