CVE-2023-51025Public exploit

Unauthenticated command execution via admuser injection

Published Dec 22, 2023 · Updated Sep 12, 2024

OS command injection in TOTOLINK EX1800T Firmware 9.1.0cu.2112_B20220316 allows remote attackers to execute commands via admuser. The setPasswordCfg handler in cstecgi.cgi incorporates the admuser value into an operating-system command without neutralizing command characters. An unauthenticated request from an adjacent network can execute arbitrary commands with the firmware service's privileges, allowing device data access, configuration changes, or service interruption.

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 commands via admuser. The setPasswordCfg handler in cstecgi.cgi incorporates the admuser value into an operating-system command without neutralizing command characters. An unauthenticated request from an adjacent network can execute arbitrary commands with the firmware service's privileges, allowing device data access, configuration changes, or service interruption.

The record

CVE
CVE-2023-51025
Published
Dec 22, 2023
Updated
Sep 12, 2024
Vendor
TOTOLINK
Product
TOTOLINK EX1800T Firmware
Classifications
CWE-77, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 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 vectoradjacent
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
8.8CISA ADPCVSS:3.1/AV:A/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command 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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