CVE-2026-5942 — Flaws in page lifecycle management allow document structure

title: CVE-2026-5942 - Exploitation Attempt via Malicious Document Load
id: scw-2026-04-27-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-5942 by observing common document viewers (e.g., Adobe Reader, Microsoft Office applications) being launched by the user's shell (explorer.exe) with command-line arguments indicative of opening a file. This specific pattern, when combined with the vulnerability in page lifecycle management, suggests an attempt to trigger the flaw for code execution or denial of service.
author: SCW Feed Engine (AI-generated)
date: 2026-04-27
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-5942/
tags:
  - attack.initial_access
  - attack.t1204.002
logsource:
    category: process_creation
detection:
  selection:
      Image|endswith:
          - 'acrord32.exe'
          - 'winword.exe'
          - 'excel.exe'
          - 'powerpnt.exe'
      ParentImage|contains:
          - 'explorer.exe'
      CommandLine|contains:
          - '/open'
          - '/view'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse