CVE-2023-50147Public exploitNetwork attack vector

Unauthenticated command execution via setDiagnosisCfg input

Published Dec 22, 2023 · Updated Aug 28, 2024

OS command injection in TOTOLINK A3700R Firmware 9.1.2u.5822_B20200513 allows remote attackers to execute arbitrary commands. The setDiagnosisCfg handler in cstecgi.cgi incorporates untrusted diagnostic input into an operating-system command without neutralizing command syntax. No authentication or user interaction is required, and successful exploitation grants command execution in the router firmware environment.

CVSS severity9.8
Critical
EPSS probability1.18%
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 A3700R Firmware 9.1.2u.5822_B20200513 allows remote attackers to execute arbitrary commands. The setDiagnosisCfg handler in cstecgi.cgi incorporates untrusted diagnostic input into an operating-system command without neutralizing command syntax. No authentication or user interaction is required, and successful exploitation grants command execution in the router firmware environment.

The record

CVE
CVE-2023-50147
Published
Dec 22, 2023
Updated
Aug 28, 2024
Vendor
TOTOLINK
Product
TOTOLINK A3700R Firmware
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=9.1.2u.5822_b20200513

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · TOTOLINK A3700R Firmwareversion=9.1.2u.5822_b20200513

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 exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS 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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