What is CVE-2021-30816?

CVE-2021-30816 is a low-severity vulnerability in Apple iOS And Ipados. CVSS score: 2.4/10. Published 2021-10-28.

How severe is CVE-2021-30816?

Low severity. CVSS v3 base score is 2.4 out of 10.

Vulnerability in Apple iOS And Ipados

CVE-2021-30816

The issue was addressed with improved permissions logic. This issue is fixed in iOS 15 and iPadOS 15. An attacker with physical access to a device may be able to see private contact information.

Published 2021-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

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

References

support.apple.com/en-us/HT212814 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30816?: CVE-2021-30816 is a low-severity vulnerability in Apple iOS And Ipados. CVSS score: 2.4/10. Published 2021-10-28.
How severe is CVE-2021-30816?: Low severity. CVSS v3 base score is 2.4 out of 10.