CVE-2026-43748

CRITICAL
INFO Priority: 0.06 BB Relevance: 80/100
Published: 2026-07-27 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

An out-of-bounds write issue 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. An app may be able to cause unexpected system termination.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
apple macos 15.0 – 15.7.8
apple macos 26.0 – 26.6

References & Advisories (3)

https://support.apple.com/en-us/128067
Release Notes Vendor Advisory
https://support.apple.com/en-us/128071
Release Notes Vendor Advisory

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.58%
Raw Score 0.005850
Percentile 47.8%
Date 2026-10-28

Intelligence Sources

nvd ref →