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N200re Firmware CVE-2024-0299

HIGH
OS Command Injection (CWE-78)
2024-01-08 cna@vuldb.com
7.3
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.3 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 2.07%.

Exploit ScenarioDerived

A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 2.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216. It has been declared as critical. Affected by this vulnerability is the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument command leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-249865 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. Affected products include: Totolink N200Re Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.3 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

2
PoC Detected
Nov 21, 2024 - 08:46 vuln.today
Public exploit code
CVE Published
Jan 08, 2024 - 06:15 nvd
HIGH 7.3

DescriptionCVE.org

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216. It has been declared as critical. Affected by this vulnerability is the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument command leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-249865 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Executive ViewAI

Why It Matters

Organizations using A vulnerability face moderate risk from CVE-2024-0299, a OS command injection vulnerability rated CVSS 7.3. Successful exploitation could allow attackers to execute arbitrary code or commands on affected systems, potentially leading to full system compromise. Proof-of-concept code is publicly available, increasing the risk of exploitation. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: Moderate
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Deploy WAF rules to block injection patterns; (2) Restrict network access to affected components; (3) Enable enhanced logging for suspicious activity.

Threat Intelligence Overview

EPSS Score
2.1%
Top 16% exploitable
Exploit
POC
Public exploit code exists

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 2.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes

Priority Score

58
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +36
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)CVE.org

cpe:2.3:o:totolink:n200re_firmware:9.3.5u.6139_b20201216:*:*:*:*:*:*:*
CVE-2024-1001 CRITICAL POC
9.8 Jan 29

A vulnerability classified as critical has been found in Totolink N200RE 9.3.5u.6139_B20201216. Rated critical severity

CVE-2025-55895 CRITICAL POC
9.1 Dec 15

Incorrect access control in the web management interface of TOTOLINK A3300R and N200RE router firmware allows remote, un

CVE-2024-1003 HIGH POC
8.8 Jan 29

A vulnerability, which was classified as critical, has been found in Totolink N200RE 9.3.5u.6139_B20201216. Rated high s

CVE-2024-1002 HIGH POC
8.8 Jan 29

A vulnerability classified as critical was found in Totolink N200RE 9.3.5u.6139_B20201216. Rated high severity (CVSS 8.8

CVE-2024-1000 HIGH POC
8.8 Jan 29

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216. Rated high severity (CVSS 8.8), this vulnerability i

CVE-2024-0999 HIGH POC
8.8 Jan 29

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216. Rated high severity (CVSS 8.8), this vulnerability i

CVE-2024-0998 HIGH POC
8.8 Jan 29

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216. Rated high severity (CVSS 8.8), this vulnerability i

CVE-2024-0997 HIGH POC
8.8 Jan 29

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216 and classified as critical. Rated high severity (CVSS

CVE-2024-1004 HIGH POC
7.2 Jan 29

A vulnerability, which was classified as critical, was found in Totolink N200RE 9.3.5u.6139_B20201216. Rated high severi

CVE-2025-55893 MEDIUM POC
6.5 Dec 15

Command injection in the TOTOLINK N200RE router firmware (V9.3.5u.6437_B20230519) lets an attacker on the same local net

CVE-2023-2790 MEDIUM POC
5.5 May 18

A vulnerability classified as problematic has been found in TOTOLINK N200RE 9.3.5u.6255_B20211224. Rated medium severity

CVE-2025-7154 LOW POC
2.1 Jul 08

OS command injection in TOTOLINK N200RE router firmware allows remote authenticated attackers to execute arbitrary comma

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