CVE-2026-8784 — Npitre Cramfs-Tools Vulnerability
CVE-2026-8784 — A vulnerability was detected in npitre cramfs-tools up to 2.2. Affected is the function change_file_status of the file cramfsck.c. Performing a manipulation results in symlink following. The attack requires a local approach. The exploit is now public and may be used. The patch is nam
What This Means For You
- If your environment is affected by CWE-59, CWE-61, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-8784 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-8784: Cramfsck Symlink Following Vulnerability
title: CVE-2026-8784: Cramfsck Symlink Following Vulnerability
id: scw-2026-05-18-ai-1
status: experimental
level: high
description: |
Detects the execution of 'cramfsck' with a command-line argument indicative of exploiting the CVE-2026-8784 vulnerability, which involves symlink following. This is a critical detection for local privilege escalation attempts.
author: SCW Feed Engine (AI-generated)
date: 2026-05-18
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-8784/
tags:
- attack.privilege_escalation
- attack.t1570
logsource:
category: process_creation
detection:
selection:
Image|endswith:
- 'cramfsck'
CommandLine|contains:
- '--fix-symlink'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-8784 | vulnerability | CVE-2026-8784 |
| CWE-59 | weakness | CWE-59 |
| CWE-61 | weakness | CWE-61 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 18, 2026 at 07:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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