CVE-2026-34909

Katalog CVE

CVSS 10.0 · Critical KEV · sudah dieksploitasi EPSS 1,8%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada ui unifi os server, ui unifi cloud gateway industrial firmware +30 lainnya. Skor CVSS 3.1 10.0 (Critical) menurut hackerone.com. Masuk katalog KEV CISA pada 23 Juni 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account.

Advisory KUTIM-CSIRT

• Peringatan Keamanan: Kerentanan Kritis CVE-2026-34910 pada Ubiquiti UniFi OS yang Dieksploitasi Secara Aktif 24 Jun 2026

Rincian

Terbit di NVD

22 Mei 2026

Terakhir diubah

23 Juli 2026

Status NVD

Analyzed

CVSS 3.1

10.0 (Critical), sumber hackerone.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

1,8% peluang dieksploitasi; lebih tinggi dari 77,8% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Ubiquiti UniFi OS Path Traversal Vulnerability

Masuk KEV

23 Juni 2026

Tenggat CISA

26 Juni 2026 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

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.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b patch · advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34909 pemerintah AS
• https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-botnet-mirai/ exploit · advisory pihak ketiga