Vulnerability · Published Nov 3, 2026 · Assigned by Zyxel
CVE-2026-107441
High 8.8
In plain English
A high-severity out-of-bounds write in GS1900-10HP firmware from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 78.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
An out-of-bounds write vulnerability in the CGI program of Zyxel GS1900-24E firmware versions through 2.90(AAHK.2)C0 could allow an unauthenticated adjacent attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | GS1900-24E firmware | <= 2.90(AAHK.2)C0 |
| Zyxel | GS1900-8 firmware | <= 2.90(AAHH.2)C0 |
| Zyxel | GS1900-8HP firmware | <= 2.90(AAHI.2)C0 |
| Zyxel | GS1900-10HP firmware | <= 2.90(AAZI.2)C0 |
| Zyxel | GS1900-16 firmware | <= 2.90(AAHJ.2)C0 |
| Zyxel | GS1900-24 firmware | <= 2.90(AAHL.2)C0 |
| Zyxel | GS1900-24EP firmware | <= 2.90(ABTO.2)C0 |
| Zyxel | GS1900-HPv2 firmware | <= 2.90(ABTP.2)C0 |
| Zyxel | GS1900-48 firmware | <= 2.90(AAHN.2)C0 |
| Zyxel | GS1900-48HPv2 firmware | <= 2.90(ABTQ.2)C0 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H