FLIR Systems AX8 Cameras Missing Authentication for Critical Function (CVE-2018-25139)

high Tenable OT Security Plugin ID 505186

Synopsis

The remote OT asset is affected by a vulnerability.

Description

FLIR AX8 Thermal Camera 1.32.16 contains an unauthenticated vulnerability that allows remote attackers to access live video streams without credentials. Attackers can directly connect to the RTSP stream using tools like VLC or FFmpeg to view and record thermal camera footage.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

https://www.exploit-db.com/exploits/45606

https://www.flir.com

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5492.php

Plugin Details

Severity: High

ID: 505186

File Name: tenable_ot_flirsystems_CVE-2018-25139.nasl

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 2/19/2026

Updated: 2/20/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:flir:flir_ax8_firmware:1.32.16, cpe:/o:flir:flir_ax8_firmware:1.17.13

Required KB Items: Tenable.ot/FLIRSystems

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/24/2025

Vulnerability Publication Date: 12/24/2025

Reference Information

CVE: CVE-2018-25139

CWE: 306