CVE-2024-0294Network attack vector

Unauthenticated command execution via unsanitized USSD input

Published Jan 8, 2024 · Updated Jun 17, 2025

OS command injection in TOTOLINK LR1200GB 9.1.0u.6619_B20230130 allows remote attackers to execute commands via crafted USSD input. The setUssd handler in /cgi-bin/cstecgi.cgi incorporates the untrusted ussd request parameter into an operating-system command without neutralizing shell metacharacters. No authentication or user interaction is required; successful exploitation permits command execution in the CGI process context and can alter router operation.

CVSS severity9.8
Critical
EPSS probability3.83%
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 LR1200GB 9.1.0u.6619_B20230130 allows remote attackers to execute commands via crafted USSD input. The setUssd handler in /cgi-bin/cstecgi.cgi incorporates the untrusted ussd request parameter into an operating-system command without neutralizing shell metacharacters. No authentication or user interaction is required; successful exploitation permits command execution in the CGI process context and can alter router operation.

The record

CVE
CVE-2024-0294
Published
Jan 8, 2024
Updated
Jun 17, 2025
Vendor
TOTOLINK
Product
LR1200GB
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record 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=9.1.0u.6619_B20230130

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · LR1200GBversion=9.1.0u.6619_B20230130

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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 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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