What is CVE-2026-43753?

CVE-2026-43753 is a medium-severity vulnerability in Apple Ios And Ipados, classified under Out-of-bounds Read. CVSS score: 4.6/10. Published 2026-07-27.

How severe is CVE-2026-43753?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Out-of-bounds Read in Apple Ios And Ipados

CVE-2026-43753

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An attacker with physical access to a locked device may be abl…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-43753?: CVE-2026-43753 is a medium-severity vulnerability in Apple Ios And Ipados, classified under Out-of-bounds Read. CVSS score: 4.6/10. Published 2026-07-27.
How severe is CVE-2026-43753?: Medium severity. CVSS v3 base score is 4.6 out of 10.