VulnSocial

CVE-2026-54403Disclosure(ui / enterprise_firewall_core)

LOWCVSS 8.6 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch ui enterprise_firewall_core systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.

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1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • enterprise_firewall_core
  • enterprise_firewall_core_firmware
  • enterprise_fortress_gateway
  • enterprise_fortress_gateway_firmware

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-02); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
ui
Products
enterprise_firewall_coreenterprise_firewall_core_firmwareenterprise_fortress_gatewayenterprise_fortress_gateway_firmwareenterprise_network_video_recorderenterprise_network_video_recorder_coreenterprise_network_video_recorder_core_firmwareenterprise_network_video_recorder_firmwareunas_2unas_2_firmware

1 version affected across 63 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-02: 1Mentions · 2026-07-10: 1Patch / Workaround · 2026-07-10: 1Technical Details · 2026-07-02: 1Technical Details · 2026-07-10: 107-0207-10
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets1 URL
By indicator
Classification over time
DateTotalLabels
2026-07-021
Disclosure1
2026-07-101
Patch1
Full discourse2 posts
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH SEVERITY: CVE-2026-54403 (CVSS 8.6) Path Traversal flaw in UniFi OS allows network attackers to bypass authentication. No user interaction required. Affected: Certain UniFi OS devices Impact: Confidentiality breach #CVE #Vulnerability #PatchNow https://t.co/kRcHrV11mp

    Post summary

    A high‑severity path traversal flaw in UniFi OS that lets attackers bypass authentication; a patch is available and advised.

    0000065
    71 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-54403 Path Traversal Vulnerability in UniFi OS Enables Authentication Bypass https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-54403

    Post summary

    The tweet announces CVE-2026-54403, describing a path traversal flaw in UniFi OS that can bypass authentication, but provides no PoC, patch, or exploitation evidence.

    00000120
    4.1K followersView on X
CPE platform detail63 entries

63 of 63 entries

PartVendorProductVersionTarget SWTarget HW
HWuienterprise_firewall_core---
OSuienterprise_firewall_core_firmware---
HWuienterprise_fortress_gateway---
OSuienterprise_fortress_gateway_firmware---
HWuienterprise_network_video_recorder---
HWuienterprise_network_video_recorder_core---
OSuienterprise_network_video_recorder_core_firmware---
OSuienterprise_network_video_recorder_firmware---
HWuiunas_2---
OSuiunas_2_firmware---
HWuiunas_4---
OSuiunas_4_firmware---
HWuiunas_pro---
HWuiunas_pro_4---
OSuiunas_pro_4_firmware---
HWuiunas_pro_8---
OSuiunas_pro_8_firmware---
OSuiunas_pro_firmware---
HWuiunifi_cloud_gateway_fiber---
OSuiunifi_cloud_gateway_fiber_firmware---
HWuiunifi_cloud_gateway_industrial---
OSuiunifi_cloud_gateway_industrial_firmware---
HWuiunifi_cloud_gateway_max---
OSuiunifi_cloud_gateway_max_firmware---
HWuiunifi_cloud_gateway_ultra---
OSuiunifi_cloud_gateway_ultra_firmware---
HWuiunifi_cloud_key_plus---
OSuiunifi_cloud_key_plus_firmware---
HWuiunifi_cloudkey---
HWuiunifi_cloudkey_enterprise---
OSuiunifi_cloudkey_enterprise_firmware---
OSuiunifi_cloudkey_firmware---
HWuiunifi_dream_machine---
HWuiunifi_dream_machine_beast---
OSuiunifi_dream_machine_beast_firmware---
OSuiunifi_dream_machine_firmware---
HWuiunifi_dream_machine_pro---
OSuiunifi_dream_machine_pro_firmware---
HWuiunifi_dream_machine_pro_max---
OSuiunifi_dream_machine_pro_max_firmware---
HWuiunifi_dream_machine_special_edition---
OSuiunifi_dream_machine_special_edition_firmware---
HWuiunifi_dream_router---
HWuiunifi_dream_router_5g_max---
OSuiunifi_dream_router_5g_max_firmware---
HWuiunifi_dream_router_7---
OSuiunifi_dream_router_7_firmware---
OSuiunifi_dream_router_firmware---
HWuiunifi_dream_wall---
OSuiunifi_dream_wall_firmware---
HWuiunifi_express_7---
OSuiunifi_express_7_firmware---
HWuiunifi_network_video_recorder---
OSuiunifi_network_video_recorder_firmware---
HWuiunifi_network_video_recorder_g2---
OSuiunifi_network_video_recorder_g2_firmware---
HWuiunifi_network_video_recorder_g2_pro---
OSuiunifi_network_video_recorder_g2_pro_firmware---
HWuiunifi_network_video_recorder_instant---
OSuiunifi_network_video_recorder_instant_firmware---
HWuiunifi_network_video_recorder_pro---
OSuiunifi_network_video_recorder_pro_firmware---
Appuiunifi_os_server---

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