KEV Entry

CVE-2026-34909

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-34909

2026-06-23 00:00 UTC

Timestamps

2026-06-23

2026-06-23

Scope

KEV entry: Ubiquiti UniFi OS Path Traversal Vulnerability | Affected: Ubiquiti / UniFi OS | Description: Ubiquiti UniFi OS contains a path traversal vulnerability which could allow a malicious actor with access to the network to access files on the underlying system that could be manipulated to access an underlying account. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-06-26 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-34909

References
  • {'id': 'CVE-2026-34909', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-34909'}

ae12d4e6-8e25-4665-9581-2d437ce5b644

405284c2-e461-4670-8979-7fd2c9755a60

2026-06-23 18:00 UTC

2026-06-23 18:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-22"
  ],
  "date_added": "2026-06-23",
  "due_date": "2026-06-26",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "UniFi OS",
  "vendorProject": "Ubiquiti",
  "vulnerabilityName": "Ubiquiti UniFi OS Path Traversal Vulnerability"
}
 -
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