A vulnerability was found in Tenda G103 1.0.0.5 . It has been declared as critical . The affected element is the function action_set_system_settings of the file system.lua of the component Setting Handler . Such manipulation of the argument lanIp leads to command injection. This vulnerability is listed as CVE-2026-5338 . The attack may be performed from remote. In addition, an exploit is available.
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VDB-354669 · CVE-2026-5338 · GCVE-100-354669 Tenda G103 1.0.0.5 Setting system.lua action_set_system_settings lanIp command injection History Diff relate json xml CTI CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack. CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. 4.3 $0-$5k 1.27+ Summary info A vulnerability was found in Tenda G103 1.0.0.5 . It has been rated as critical . The impacted element is the function action_set_system_settings of the file system.lua of the component Setting Handler . Performing a manipulation of the argument lanIp results in command injection. This vulnerability is cataloged as CVE-2026-5338 . It is possible to initiate the attack remotely. Furthermore, there is an exploit available. Details info A vulnerability was found in Tenda G103 1.0.0.5 . It has been classified as critical. This affects the function action_set_system_settings of the file system.lua of the component Setting Handler . The manipulation of the argument lanIp with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77 . The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The advisory is shared at github.com . This vulnerability is uniquely identified as CVE-2026-5338 . The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue. The exploit is shared for download at github.com . It is declared as proof-of-concept. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The entries VDB-353823 , VDB-353866 , VDB-353967 and VDB-354067 are related to this item. Product info Type Router Operating System Vendor Tenda Name G103 Version 1.0.0.5 License commercial Website Vendor: https://www.tenda.com.cn/ CPE 2.3 info 🔒 CPE 2.2 info 🔒 CVSSv4 info VulDB Vector : 🔒 VulDB Reliability : 🔍 CVSSv3 info VulDB Meta Base Score : 4.7 VulDB Meta Temp Score : 4.3 VulDB Base Score : 4.7 VulDB Temp Score : 4.3 VulDB Vector : 🔒 VulDB Reliability : 🔍 CVSSv2 info AV AC Au C I A 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score : 🔒 VulDB Temp Score : 🔒 VulDB Reliability : 🔍 Exploiting info Class : Command injection CWE : CWE-77 / CWE-74 / CWE-707 CAPEC : 🔒 ATT&CK : 🔒 Physical : No Local : No Remote : Yes Availability : 🔒 Access : Public Status : Proof-of-Concept Download : 🔒 Price Prediction : 🔍 Current Price Estimation : 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligence info Interest : 🔍 Active Actors : 🔍 Active APT Groups : 🔍 Countermeasures info Recommended : no mitigation known Status : 🔍 0-Day Time : 🔒 Timeline info 04/01/2026 Advisory disclosed 04/01/2026 +0 days VulDB entry created 04/01/2026 +0 days VulDB entry last update Sources info Vendor : tenda.com.cn Advisory : github.com Status : Not defined CVE : CVE-2026-5338 ( 🔒 ) GCVE (CVE) : GCVE-0-2026-5338 GCVE (VulDB) : GCVE-100-354669 scip Labs : https://www.scip.ch/en/?labs.20161013 See also : 🔒 Entry info Created : 04/01/2026 04:14 PM Changes : 04/01/2026 04:14 PM (58) Complete : 🔍 Submitter : n0ps1ed Cache ID : 99:CDB:101 Submit info Accepted Submit #781131 : Tenda G103 G103_V1.0.0.5 Command Injection (by n0ps1ed) Discussion No comments yet. Languages: en. Please log in to comment. ◂ Previous Overview Next ▸ Interested in the pricing of exploits? See the underground prices here!