CVE-2021-30731

MEDIUM

macOS 10.15-10.15.5 and 11.0.1-11.3 - Unprivileged USB Device Capture

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-30731. PoCs published by osy.

AI-analyzed exploit summary This repository contains a functional PoC for CVE-2021-30731, which exploits a vulnerability in macOS to access webcam feeds without proper entitlements. The code includes build scripts and dependencies to compile a working application that demonstrates the issue.

Description

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Catalina. An unprivileged application may be able to capture USB devices.

Exploits (1)

nomisec WORKING POC 7 stars
by osy · poc
https://github.com/osy/WebcamViewer

This repository contains a functional PoC for CVE-2021-30731, which exploits a vulnerability in macOS to access webcam feeds without proper entitlements. The code includes build scripts and dependencies to compile a working application that demonstrates the issue.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: macOS 11.3.1 or lower, macOS 10.15 before Catalina Security Update 2021-004
No auth needed
Prerequisites: macOS with vulnerable version · UVD compatible USB webcam · Xcode for building
mistral-large-3 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212600
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212529

Scores

CVSS v3 5.5
EPSS 0.0060
EPSS Percentile 44.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

Status published
Products (3)
apple/mac_os_x 10.15.7 (9 CPE variants)
apple/mac_os_x 10.15 - 10.15.6
apple/macos 11.0.1 - 11.4
Published Sep 08, 2021
Tracked Since Feb 18, 2026