CVE-2026-45130 — Buffer Overflow

title: CVE-2026-45130 - Vim Spell File Heap Buffer Overflow
id: scw-2026-05-08-ai-1
status: experimental
level: critical
description: |
  Detects the creation of a .spl file, which is a precursor to the CVE-2026-45130 heap buffer overflow vulnerability in Vim when loading a crafted spell file with UTF-8 encoding. This rule specifically targets the creation of the malicious spell file.
author: SCW Feed Engine (AI-generated)
date: 2026-05-08
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-45130/
tags:
  - attack.execution
  - attack.t1204.002
logsource:
    category: file_event
detection:
  selection:
      TargetFilename|endswith:
          - '.spl'
      selection_2:
          EventType: 'create'
  condition: selection AND selection_2
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse