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A3002ru Firmware CVE-2018-13306

CRITICAL
OS Command Injection (CWE-78)
2018-11-27 cve@mitre.org
9.8
CVSS 3.0 · 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 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

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.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
No patch listed yet 3.2% exploitation probability (EPSS)

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AnalysisAI

System command injection in formDlna in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands via the "ftpUser" POST parameter. Rated critical severity (CVSS 9.8), 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. System command injection in formDlna in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands via the "ftpUser" POST parameter. Affected products include: Totolink A3002Ru Firmware. Version information: version 1.0.8.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
High
Integrity
High
Availability
High

DescriptionNVD

System command injection in formDlna in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands via the "ftpUser" POST parameter.

Threat Intelligence Overview

EPSS Score
3.2%
Top 13% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

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 CRITICAL
CISA KEV No
Public POC Yes
EPSS 3.2%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC available
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

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

72
Low Medium High Critical
KEV: 0
EPSS: +3
CVSS: +49
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)NVD

cpe:2.3:o:totolink:a3002ru_firmware:1.0.8:*:*:*:*:*:*:*
CVE-2024-34198 CRITICAL POC
9.8 Aug 28

TOTOLINK AC1200 Wireless Router A3002RU V2.1.1-B20230720.1011 is vulnerable to Buffer Overflow. Rated critical severity

CVE-2018-13316 CRITICAL POC
9.8 Nov 27

System command injection in formAliasIp in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands vi

CVE-2018-13314 CRITICAL POC
9.8 Nov 27

System command injection in formAliasIp in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands vi

CVE-2018-13307 CRITICAL POC
9.8 Nov 27

System command injection in fromNtp in TOTOLINK A3002RU version 1.0.8 allows attackers to execute system commands via th

CVE-2018-13315 CRITICAL POC
9.8 Nov 26

Incorrect access control in formPasswordSetup in TOTOLINK A3002RU version 1.0.8 allows attackers to change the admin use

CVE-2025-6393 HIGH POC
8.8 Jun 21

CVE-2025-6393 is a critical buffer overflow vulnerability in the HTTP POST request handler of TOTOLINK routers affecting

CVE-2025-6163 HIGH POC
8.8 Jun 17

Critical buffer overflow vulnerability in TOTOLINK A3002RU routers (version 3.0.0-B20230809.1615 and potentially others)

CVE-2025-6148 HIGH POC
8.8 Jun 17

Critical remote buffer overflow vulnerability in TOTOLINK A3002RU firmware version 3.0.0-B20230809.1615 affecting the HT

CVE-2025-6337 HIGH POC
8.8 Jun 20

CVE-2025-6337 is a critical buffer overflow vulnerability in TOTOLINK A3002R and A3002RU routers affecting versions 3.0.

CVE-2025-6953 HIGH POC
8.8 Jul 01

A vulnerability, which was classified as critical, was found in TOTOLINK A3002RU 3.0.0-B20230809.1615. Affected is an un

CVE-2026-26736 HIGH POC
8.8 Feb 17

Stack-based buffer overflow in TOTOLIK A3002RU firmware versions up to V3.0.0-B20220304.1804 allows authenticated attack

CVE-2025-6939 HIGH POC
8.8 Jul 01

A vulnerability classified as critical has been found in TOTOLINK A3002RU 3.0.0-B20230809.1615. Affected is an unknown f

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