What is CVE-2021-30748?

CVE-2021-30748 is a high-severity vulnerability in Apple iOS, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-09-08.

How severe is CVE-2021-30748?

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

Buffer overflow in Apple iOS

CVE-2021-30748

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. An application may be able to execute arbitrary code with kernel privileges.

Vulnerability class: Buffer Overflow

EPSS: 0.014 (68.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Apple Ios — versions unspecified
Apple Ipados
Apple Iphone_os
Apple Macos — versions unspecified
Apple Tvos

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
product-security@apple.com (x_refsource_MISC, Vendor Advisory)
product-security@apple.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30748?: CVE-2021-30748 is a high-severity vulnerability in Apple iOS, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-09-08.
How severe is CVE-2021-30748?: High severity. CVSS v3 base score is 7.8 out of 10.