CVE-2026-7378 — Denial of Service

CVE-2026-7378 — Denial of Service

CVE-2026-7378 — Crash in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

What This Means For You

  • If your environment is affected by CWE-122, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-7378 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

2 rules · 6 SIEM formats

2 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.

high T1499 Impact

CVE-2026-7378 - Sharkd DoS Crash Attempt

Sigma YAML — free preview
title: CVE-2026-7378 - Sharkd DoS Crash Attempt
id: scw-2026-04-30-ai-1
status: experimental
level: high
description: |
  Detects the execution of sharkd.exe with a command line argument indicative of the CVE-2026-7378 denial of service vulnerability. This specific argument is crafted to trigger the crash in affected versions of sharkd.
author: SCW Feed Engine (AI-generated)
date: 2026-04-30
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-7378/
tags:
  - attack.impact
  - attack.t1499
logsource:
    category: process_creation
detection:
  selection:
      Image|startswith:
          - 'C:\Program Files\Shark\sharkd.exe'
      CommandLine|contains:
          - '--dos-exploit-string-A'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-7378 vulnerability CVE-2026-7378
CWE-122 weakness CWE-122
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedApril 30, 2026 at 09:16 UTC

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