CVE-2023-51012Network attack vector

Unauthenticated command execution via lanGateway injection

Published Dec 22, 2023 · Updated Aug 2, 2024

Command injection in TOTOlink EX1800T 9.1.0cu.2112_B20220316 allows remote attackers to execute arbitrary commands via lanGateway. The cstecgi.cgi setLanConfig interface uses the attacker-controlled lanGateway value in command processing without rejecting injected shell syntax. No authentication or user interaction is required, so network access to the management interface permits compromise of device data, settings, and availability.

CVSS severity9.8
Critical
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in TOTOlink EX1800T 9.1.0cu.2112_B20220316 allows remote attackers to execute arbitrary commands via lanGateway. The cstecgi.cgi setLanConfig interface uses the attacker-controlled lanGateway value in command processing without rejecting injected shell syntax. No authentication or user interaction is required, so network access to the management interface permits compromise of device data, settings, and availability.

The record

CVE
CVE-2023-51012
Published
Dec 22, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS: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.

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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 exploitUnconfirmed

Weakness, pattern, technique

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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