CVE-2023-51015Public exploitNetwork attack vector

Unauthenticated command execution via DMZ enable parameter

Published Dec 22, 2023 · Updated Aug 27, 2024

OS command injection in TOTOLINK EX1800T Firmware 9.1.0cu.2112_B20220316 allows remote attackers to execute arbitrary commands over the network. The setDmzCfg handler in /cgi-bin/cstecgi.cgi accepts command syntax in the untrusted enable parameter and executes the injected operating-system command. No authentication or user interaction is required, and successful exploitation permits arbitrary changes to appliance behavior.

CVSS severity9.8
Critical
EPSS probability1.05%
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 TOTOLINK EX1800T Firmware 9.1.0cu.2112_B20220316 allows remote attackers to execute arbitrary commands over the network. The setDmzCfg handler in /cgi-bin/cstecgi.cgi accepts command syntax in the untrusted enable parameter and executes the injected operating-system command. No authentication or user interaction is required, and successful exploitation permits arbitrary changes to appliance behavior.

The record

CVE
CVE-2023-51015
Published
Dec 22, 2023
Updated
Aug 27, 2024
Vendor
TOTOLINK
Product
TOTOLINK EX1800T Firmware
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=9.1.0cu.2112_b20220316

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · TOTOLINK EX1800T Firmwareversion=9.1.0cu.2112_b20220316

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

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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