What is CVE-2021-30991?

CVE-2021-30991 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2021-08-24.

How severe is CVE-2021-30991?

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

Out-of-bounds Read in Apple iOS And Ipados

CVE-2021-30991

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 15.2 and iPadOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (61.5th 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 And Ipados — versions unspecified
Apple Ipados
Apple Iphone_os

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

product-security@apple.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-30991?: CVE-2021-30991 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2021-08-24.
How severe is CVE-2021-30991?: High severity. CVSS v3 base score is 7.8 out of 10.