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 ↗

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

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

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