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CVE-2026-34909

Path Traversal Vulnerability in UniFi OS Devices Enables Unauthorized System Access

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.

CVSS 3.1 · 10 Critical EPSS 69.2% KEV · Listed
Vendors
Products
Efg Envr Envr-core and 91 more
CVE-2026-34908

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi OS devices to make unauthorized changes to the system.

CVSS 3.1 · 10 Critical EPSS 88.9% KEV · Listed
Vendors
Products
Efg Envr Envr-core and 89 more
CVE-2026-34910

Command Injection Vulnerability in UniFi OS Devices

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

CVSS 3.1 · 10 Critical EPSS 90.0% KEV · Listed
Vendors
Products
Efg Envr Envr-core and 89 more
CVE-2026-77544

Out-of-Bounds Write in UniFi Gateways Leading to Device Denial of Service

A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-77555

A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-77556

Out-of-Bounds Read Exploitation Causing Denial of Service on UniFi Gateways

A malicious actor with access to the network could exploit an Out-of-bounds Read vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-77558

Out-of-Bounds Read in UniFi Gateway Firmware Enables Device Denial of Service

A malicious actor with access to the network could exploit an Out-of-bounds Read vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-95861

Uncontrolled Recursion in UniFi Gateway Devices Enabling DoS

A malicious actor with access to the network could exploit an Uncontrolled Recursion vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-95862

Out-of-Bounds Write in UniFi Gateways Leading to DoS

A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-47368

Path Traversal Enables Unauthorized Data Access on UniFi OS Devices

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

CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
Products
Efg Envr Envr-core and 28 more
CVE-2026-47369

Privilege Escalation via Improper Input Validation in UniFi OS Devices

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.

CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed
Vendors
Products
Efg Envr Envr-core and 29 more
CVE-2026-47370

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to execute a Command Injection within such UniFi OS devices or instances.

CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed
Vendors
Products
Efg Envr Envr-core and 28 more
CVE-2026-48610

Under certain network configurations, a malicious actor with access to network could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to make unauthorized changes to such UniFi OS devices.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Products
Efg Express 7 Ucg-fiber and 12 more
CVE-2026-34911

Path Traversal Vulnerability in UniFi OS Devices Allows Unauthorized File Access

A malicious actor with access to the network and low privileges could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to obtain sensitive information.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Vendors
Products
Efg Envr Envr-core and 89 more