CVE-2026-6989 | Tenda F453 up to 1.0.0.3 Telnet Service /goform/telnet TendaTelnet command injection

VDB-359541 · SUBMIT #796560 · CVE-2026-6989 TENDA F453 UP TO 1.0.0.3 TELNET SERVICE /GOFORM/TELNET TENDATELNET COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability was found in Tenda F453 up to 1.0.0.3. It has been rated as critical. The affected element is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Performing a manipulation results in command injection. This vulnerability is identified as CVE-2026-6989. The attack can be initiated remotely. Additionally, an exploit exists. Detailsinfo A vulnerability classified as critical has been found in Tenda F453 up to 1.0.0.3. This affects the function TendaTelnet of the file /goform/telnet of the component Telnet Service. The manipulation 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-2026-6989. The exploitability is told to be easy. It is possible to initiate the attack remotely. 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. Productinfo Type Router Operating System Vendor Tenda Name F453 Version 1.0.0.0 1.0.0.1 1.0.0.2 1.0.0.3 License commercial Website Vendor: https://www.tenda.com.cn/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 5.7 VulDB Base Score: 6.3 VulDB Temp Score: 5.7 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info 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: 🔍 Exploitinginfo 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 Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/24/2026 Advisory disclosed 04/24/2026 +0 days VulDB entry created 04/24/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: github.com Status: Not defined CVE: CVE-2026-6989 (🔒) GCVE (CVE): GCVE-0-2026-6989 GCVE (VulDB): GCVE-100-359541 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/24/2026 21:30 Changes: 04/24/2026 21:30 (57) Complete: 🔍 Submitter: alc9700 Cache ID: 99:6C0:101 Submitinfo Accepted Submit #796560: Tenda Tenda F453 Router <= V1.0.0.3 Remote Command Execution (by alc9700) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸