CVE-2015-9266

Ubiquiti airOS HTTP(S) unauthenticated arbitrary file upload

CRITICAL
9.8
CVSS Score
Published: September 5, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 12:36 AM UTC
23 products affected across 2 vendorsAirmax Ac FirmwareAirmax M Ti FirmwareAF5 Firmware

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Severity
CRITICAL9.8
Exploit prediction
EPSS 74%

Description

The web management interface of Ubiquiti airMAX, airFiber, airGateway and EdgeSwitch XP (formerly TOUGHSwitch) allows an unauthenticated attacker to upload and write arbitrary files using directory traversal techniques. An attacker can exploit this vulnerability to gain root privileges. This vulnerability is fixed in the following product versions (fixes released in July 2015, all prior versions are affected): airMAX AC 7.1.3; airMAX M (and airRouter) 5.6.2 XM/XW/TI, 5.5.11 XM/TI, and 5.5.10u2 XW; airGateway 1.1.5; airFiber AF24/AF24HD 2.2.1, AF5x 3.0.2.1, and AF5 2.2.1; airOS 4 XS2/XS5 4.0.4; and EdgeSwitch XP (formerly TOUGHSwitch) 1.3.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.0.4
Affected range stops below 4.0.4, so it looks safe — our inference, not a vendor statement
ui-airmax-ac (environment) · ui-airmax-m (environment)
v < 4.0.4
Affected range stops below 4.0.4, so it looks safe — our inference, not a vendor statement
ui-airmax-ac (environment) · ui-airmax-m (environment)
v < 1.3.2
Affected range stops below 1.3.2, so it looks safe — our inference, not a vendor statement
ui-edgeswitch-xp (environment)
v < 2.2.1
Affected range stops below 2.2.1, so it looks safe — our inference, not a vendor statement
ui-af5 (same device)
v < 3.0.2.1
Affected range stops below 3.0.2.1, so it looks safe — our inference, not a vendor statement
ui-af5x (same device)
v < 2.2.1
Affected range stops below 2.2.1, so it looks safe — our inference, not a vendor statement
ui-airfiber-af24 (same device)
v < 2.2.1
Affected range stops below 2.2.1, so it looks safe — our inference, not a vendor statement
ui-airfiber-af24hd (same device)
v < 1.15
Affected range stops below 1.15, so it looks safe — our inference, not a vendor statement
ui-airgateway (same device)
ui-airmax-ac (same device)
v < 5.6.2
Affected range stops below 5.6.2, so it looks safe — our inference, not a vendor statement
ui-airmax-m-ti (same device)

CVSS

9.8CRITICALmitre
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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