CVE-2026-43776 — HIGH (7.8)

Q: How severe is CVE-2026-43776?

CVE-2026-43776 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-43776?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos.

Vulnerability Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apple	Ipados	< 26.6
Apple	Iphone Os	< 26.6
Apple	Macos	>= 15.0, < 15.7.8

Related Weaknesses (CWE)

CWE-120

References

https://support.apple.com/en-us/128066Release NotesVendor Advisory
https://support.apple.com/en-us/128067Release NotesVendor Advisory
https://support.apple.com/en-us/128071Release NotesVendor Advisory

FAQ

What is CVE-2026-43776?

CVE-2026-43776 is a vulnerability with a CVSS score of 7.8 (HIGH). A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. Processing a maliciously crafted file may lead t...

How severe is CVE-2026-43776?

CVE-2026-43776 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-43776?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos.