SB20260928428 - Remote code execution in macOS Tahoe

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260928428

SB20260928428 - Remote code execution in macOS Tahoe

Published: September 28, 2026

Security Bulletin ID SB20260928428
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Critical 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2026-86950) Exploited

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing files within the CoreGraphics component. A remote attacker can trick the victim into opening a specially crated file, trigger memory corruption and execute arbitrary code on the target system.

Note, the vulnerability is being actively exploited in the wild against iPhone users. 


Remediation

Install update from vendor's website.

References