Out-of-bounds Read in Apple iOS And Ipados

CVE-2021-30687

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted image may lead to disclosure of user information.

Vulnerability class: Buffer Overflow

EPSS: 0.012 (64.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-30687?
CVE-2021-30687 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2021-09-08.
How severe is CVE-2021-30687?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-30687 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.