What is CVE-2021-30874?

CVE-2021-30874 is a high-severity vulnerability in Apple iOS And Ipados, classified under Missing Authorization. CVSS score: 7.5/10. Published 2021-08-24.

How severe is CVE-2021-30874?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Apple iOS And Ipados

CVE-2021-30874

An authorization issue was addressed with improved state management. This issue is fixed in iOS 15 and iPadOS 15. A VPN configuration may be installed by an app without user permission.

Vulnerability class: Broken Access Control

Published 2021-08-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Apple iOS And Ipados — versions unspecified
Apple Ipados
Apple Iphone OS
Apple macOS

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2021-30874?: CVE-2021-30874 is a high-severity vulnerability in Apple iOS And Ipados, classified under Missing Authorization. CVSS score: 7.5/10. Published 2021-08-24.
How severe is CVE-2021-30874?: High severity. CVSS v3 base score is 7.5 out of 10.