Description
An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously crafted document may lead to an out-of-bounds read.
Published: 2026-09-14
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Out‑of‑bounds read
Action: Apply update
AI Analysis

Impact

An integer overflow occurs while parsing a maliciously crafted document, allowing the reader to access memory outside the intended bounds. This vulnerability is classified as CWE-190.

Affected Systems

The affected releases are macOS versions prior to Golden Gate 27, Sequoia 15.8, and Tahoe 26.7. Users who have not yet applied these updates remain vulnerable.

Risk and Exploitability

The CVSS score of 5.5 indicates medium severity, while the EPSS score of less than 1% suggests a very low likelihood of exploitation. The issue is not listed in the CISA KEV catalog.

Generated by OpenCVE AI on September 20, 2026 at 21:48 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the macOS security update that includes Golden Gate 27, Sequoia 15.8, or Tahoe 26.7.
  • Until the update is installed, avoid opening documents from untrusted or unknown sources.
  • Monitor system logs for abnormal memory access errors or crashes that could indicate attempted exploitation.

Generated by OpenCVE AI on September 20, 2026 at 21:48 UTC.

Tracking

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Advisories

No advisories yet.

History

Sun, 20 Sep 2026 22:15:00 +0000

Type Values Removed Values Added
Title macOS Document Parser Integer Overflow Enables Out‑of‑Bounds Read

Sat, 19 Sep 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H'}

 ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

Wed, 16 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-190
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H'}

Wed, 16 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Title Integer Overflow Causing Out-of-Bounds Read in macOS Document Processing
Weaknesses CWE-680
CWE-739

Tue, 15 Sep 2026 09:15:00 +0000

Type Values Removed Values Added
Title Integer Overflow Causing Out-of-Bounds Read in macOS Document Processing
Weaknesses CWE-680
CWE-739

Tue, 15 Sep 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously crafted document may lead to an out-of-bounds read.
References

Subscriptions

Apple Macos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-09-17T15:10:42.483Z

Reserved: 2026-09-01T21:13:17.751Z

Link: CVE-2026-84548

cve-icon Vulnrichment

Updated: 2026-09-17T15:10:18.230Z

cve-icon NVD

Status : Modified

Published: 2026-09-14T21:17:30.933

Modified: 2026-09-17T16:18:12.213

Link: CVE-2026-84548

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-20T22:00:09Z

Weaknesses
  • CWE-190

    Integer Overflow or Wraparound