CVE-2024-11253Network attack vector

Administrator command execution via DNSServer injection

Published Mar 11, 2025 · Updated Feb 26, 2026

OS command injection in Zyxel VMG8825-T50K Firmware 5.50(ABOM.8.5)C0 and earlier allows remote authenticated users to run OS commands. The diagnostic function passes the DNSServer parameter into an operating-system command without neutralizing command syntax, allowing injected input to alter the command. Administrator privileges and compromised credentials are required; WAN administration is disabled by default, limiting remote exposure unless enabled.

CVSS severity7.2
High
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Zyxel VMG8825-T50K Firmware 5.50(ABOM.8.5)C0 and earlier allows remote authenticated users to run OS commands. The diagnostic function passes the DNSServer parameter into an operating-system command without neutralizing command syntax, allowing injected input to alter the command. Administrator privileges and compromised credentials are required; WAN administration is disabled by default, limiting remote exposure unless enabled.

The record

CVE
CVE-2024-11253
Published
Mar 11, 2025
Updated
Feb 26, 2026
Vendor
Zyxel Networks
Product
VMG8825-T50K Firmware
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record 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=<= V5.50(ABOM.8.5)C0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Zyxel Networks · VMG8825-T50K Firmwareversion=<= V5.50(ABOM.8.5)C0

Published CVSS scores

7.2Zyxel CorporationCVSS:3.1/AV:N/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)
Vectornetwork
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

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Your stack

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