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CVE-2021-3861

The RNDIS USB device class includes a buffer overflow vulnerability

MEDIUM
6.8
CVSS Score
Published: February 7, 2022 at 10:00 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsZephyrZephyr

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.5%

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zephyr· Zephyrproject
95%
2.6.0 ≤ v ≤ 2.7.1
Zephyr· Zephyrproject RTOS
60%
v ≥ v2.6.02.6.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hvfp-w4h8-gxvj

CVSS

6.8MEDIUM[email protected]
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-122CWE-787

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