What is CVE-2021-30741?

CVE-2021-30741 is a high-severity vulnerability in Apple iOS And Ipados, classified under Use After Free. CVSS score: 7.1/10. Published 2021-09-08.

How severe is CVE-2021-30741?

High severity. CVSS v3 base score is 7.1 out of 10.

Use After Free in Apple iOS And Ipados

CVE-2021-30741

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.6 and iPadOS 14.6. Processing a maliciously crafted mail message may lead to unexpected memory modification or application termination.

Vulnerability class: Use-After-Free

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

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (56.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-416 — Use After Free

References

support.apple.com/en-us/HT212528 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-30741?: CVE-2021-30741 is a high-severity vulnerability in Apple iOS And Ipados, classified under Use After Free. CVSS score: 7.1/10. Published 2021-09-08.
How severe is CVE-2021-30741?: High severity. CVSS v3 base score is 7.1 out of 10.