CVE-2026-5937 — Insufficient parameter verification leads to the occurrence

title: CVE-2026-5937 - Unhandled std::invalid_argument Exception due to Malformed File Parameter
id: scw-2026-04-27-ai-1
status: experimental
level: medium
description: |
  Detects the execution of a program that is likely attempting to exploit CVE-2026-5937. The rule looks for processes starting in typical program file locations that have 'std::invalid_argument' in their command line, indicating an unhandled exception due to malformed file parameters as described in the vulnerability.
author: SCW Feed Engine (AI-generated)
date: 2026-04-27
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-5937/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: process_creation
detection:
  selection:
      Image|startswith:
          - 'C:\Program Files\'
      CommandLine|contains:
          - 'std::invalid_argument'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse