What is CVE-2021-30713?

CVE-2021-30713 is a high-severity vulnerability in Apple macOS, classified under Missing Authorization. CVSS score: 7.8/10. Published 2021-09-08.

How severe is CVE-2021-30713?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-30713 known to be exploited?

Yes. CVE-2021-30713 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Auth bypass in Apple macOS

CVE-2021-30713

A permissions issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to bypass Privacy preferences. Apple is aware of a report that this issue may have been actively exploited..

Vulnerability class: Broken Access Control

Published 2021-09-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.070 (94.1th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.070 · newest: 0.070 · change: 0.000

Affected products

Apple macOS — versions unspecified
Apple Mac OS X — versions 10.15.7

Weakness classification (CWE)

CWE-862 — Missing Authorization

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2021-11-17.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

support.apple.com/en-us/HT212529 (Release Notes, Vendor Advisory)
support.apple.com/kb/HT212805 (Release Notes, Vendor Advisory)
seclists.org/fulldisclosure/2021/Sep/40 (mailing-list, Mailing List, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory, US Government Resource)

Frequently asked questions

What is CVE-2021-30713?: CVE-2021-30713 is a high-severity vulnerability in Apple macOS, classified under Missing Authorization. CVSS score: 7.8/10. Published 2021-09-08.
How severe is CVE-2021-30713?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-30713 known to be exploited?: Yes. CVE-2021-30713 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.