CVE-2024-8881

Administrator command execution via crafted CGI request

Published Nov 12, 2024 · Updated Nov 12, 2024

Command injection in the CGI program in Zyxel GS1900-48 firmware 2.80(AAHN.1)C0 and earlier allows remote authenticated users to execute OS commands. The CGI program fails to neutralize command elements in an administrator-supplied HTTP request before invoking OS commands. Exploitation requires LAN access and administrator privileges; Zyxel discloses neither the affected parameter nor the permitted command scope.

CVSS severity6.8
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in the CGI program in Zyxel GS1900-48 firmware 2.80(AAHN.1)C0 and earlier allows remote authenticated users to execute OS commands. The CGI program fails to neutralize command elements in an administrator-supplied HTTP request before invoking OS commands. Exploitation requires LAN access and administrator privileges; Zyxel discloses neither the affected parameter nor the permitted command scope.

The record

CVE
CVE-2024-8881
Published
Nov 12, 2024
Updated
Nov 12, 2024
Vendor
Zyxel Networks
Product
GS1900-48 Firmware
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Nov 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.80(AAHN.1)C0
  2. Affected versionversion=<= V2.80(AAHN.1)C0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Zyxel Networks · GS1900-48 Firmwareversion=0 <=2.80(AAHN.1)C0; version=<= V2.80(AAHN.1)C0

Published CVSS scores

6.8Zyxel CorporationCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo