---
title: "CVE-2026-107441: Zyxel GS1900-24E - Command Injection"
description: "Zyxel GS1900-24E firmware <= 2.90(AAHK.2)C0 contains a command injection caused by an out-of-bounds write in the CGI program, letting unauthenticated adjacent attackers execute OS commands via crafted HTTP requests."
url: https://panop.io/threat-heartbeat/CVE-2026-107441/
---

# CVE-2026-107441 Zyxel GS1900-24E - Command Injection

Zyxel GS1900-24E firmware <= 2.90(AAHK.2)C0 contains a command injection caused by an out-of-bounds write in the CGI program, letting unauthenticated adjacent attackers execute OS commands via crafted HTTP requests.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-107441)

## Details

Type

Command Injection

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

3 November 2026

Updated

3 November 2026

Weakness

[CWE-787](https://cwe.mitre.org/data/definitions/787.html)

## Vendor fix

Update to the latest firmware version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-107441](https://nvd.nist.gov/vuln/detail/CVE-2026-107441)
- [https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-out-of-bounds-write-vulnerability-in-gs1900-series-switches-11-03-2026](https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-out-of-bounds-write-vulnerability-in-gs1900-series-switches-11-03-2026)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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