CVE-2024-0296Public exploitNetwork attack vector

Unauthenticated command execution via unsanitized host_time

Published Jan 8, 2024 · Updated Apr 17, 2025

OS command injection in TOTOLINK N200RE 9.3.5u.6139_B20201216 allows remote attackers to execute commands via crafted HTTP requests. The NTPSyncWithHost handler in /cgi-bin/cstecgi.cgi passes the host_time parameter into an operating-system command without neutralizing shell metacharacters. No authentication or user interaction is required; successful exploitation executes attacker-supplied commands on the router.

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 N200RE 9.3.5u.6139_B20201216 allows remote attackers to execute commands via crafted HTTP requests. The NTPSyncWithHost handler in /cgi-bin/cstecgi.cgi passes the host_time parameter into an operating-system command without neutralizing shell metacharacters. No authentication or user interaction is required; successful exploitation executes attacker-supplied commands on the router.

The record

CVE
CVE-2024-0296
Published
Jan 8, 2024
Updated
Apr 17, 2025
Vendor
TOTOLINK
Product
N200RE
Classifications
CWE-78, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 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=9.3.5u.6139_B20201216

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · N200REversion=9.3.5u.6139_B20201216

Published CVSS scores

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
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
T1059.004Unix Shell
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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