CVE-2026-0205 — SonicOS Path Traversal

April 29, 2026 20:16 /MEDIUM /CVSS 6.8/10

Written by SCW Vulnerability Desk Vulnerability Intelligence

National Vulnerability Database vulnerabilitycvemedium-severitypath-traversalcwe-35

CVE-2026-0205 — SonicOS Path Traversal

CVE-2026-0205 — A post-authentication Path Traversal vulnerability in SonicOS allows an attacker to interact with usually restricted services.

What This Means For You

If your environment is affected by CWE-35, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-0205 updates and patches.

Related ATT&CK Techniques

T1083 File and Directory Discovery Discovery T1190 Exploit Public-Facing Application Initial Access

🛡️ Detection Rules

3 rules · 6 SIEM formats

3 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 T1190 Initial Access

CVE-2026-0205 SonicOS Path Traversal Attempt

Sigma YAML — free preview

title: CVE-2026-0205 SonicOS Path Traversal Attempt
id: scw-2026-04-29-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-0205 by looking for the characteristic path traversal pattern '/../' within the URI. This vulnerability allows post-authentication attackers to access restricted services.
author: SCW Feed Engine (AI-generated)
date: 2026-04-29
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-0205/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/../'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

ID	Type	Indicator
CVE-2026-0205	vulnerability	CVE-2026-0205
CWE-35	weakness	CWE-35

Written by SCW Vulnerability Desk

Source & Attribution

Source Platform	NVD
Channel	National Vulnerability Database
Published	April 29, 2026 at 20:16 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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