Apple macOS CVE-2026-86929 溢位寫入漏洞

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to arbitrary code execution.

Impact

Affected Products

The following products are affected by CVE-2026-86929 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Apply security updates to address an out-of-bounds write vulnerability that could lead to code execution.

• Update macOS to Golden Gate 27.
• Update macOS to Sequoia 15.8.2.
• Update macOS to Tahoe 26.7.2.

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-86929.

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-86929 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-86929 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-86929 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-86929 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

• CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

  十月. 26, 2026

  Action	Type	Old Value	New Value
  Added	CVSS V3.1		AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  Added	CWE		CWE-125
  Added	SSVC		{'id': 'CVE-2026-86929', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-26T21:44:08.461403Z'}

• New CVE Received by [email protected]

  十月. 26, 2026

  Action	Type	Old Value	New Value
  Added	Description		An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to arbitrary code execution.
  Added	Affected		New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/86xxx/CVE-2026-86929.json">CVE-2026-86929</a>
  Added	Reference		https://support.apple.com/en-us/149035
  Added	Reference		https://support.apple.com/en-us/149522
  Added	Reference		https://support.apple.com/en-us/149523

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.