---
id: CVE-2026-81944
title: >-
  PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions
  before 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow
  in the web server
summary: >-
  PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions
  before 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow
  in the web server. Insufficient bounds checking on data copied into a stack
  buffer …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-121
vendor: PLANET Technology Corp.
product: PLANET IGS-5225-8P2T4S V1
affected:
  - planet_igs-5225-8p2t4s_v1 < 1.2412b260707
  - planet_igs-5225-8p2t4s_v2 < 2.2412b260519
published: '2026-09-18'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:43:58.793'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81944'
references:
  - url: 'https://www.planet.com.tw/en/support/security-advisory/11'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/planet-igs-5225-8p2t4s-v1-v2-stack-based-buffer-overflow-via-web-server
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.0071
epssPercentile: 0.51545
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-18T17:53:28.057338Z'
ingestedAt: '2026-09-18T15:44:31.583Z'
---

## Overview

PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions before 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow in the web server. Insufficient bounds checking on data copied into a stack buffer allows a remote authenticated attacker to cause a denial of service or potentially execute arbitrary code on the underlying operating system.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.