CVE-2026-64703

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

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause a denial-of-service.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
apple macos 14.0 – 14.8.8
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
https://support.apple.com/en-us/128072
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

0.57%
Raw Score 0.005690
Percentile 47.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00569
2026-10-28
0.00569

Intelligence Sources

nvd ref →