CVE-2026-6121 | Tenda F451 1.0.0.7 httpd /goform/WrlclientSet GO stack-based overflow

VDB-356984 · CVE-2026-6121 · SUBMIT #356984 TENDA F451 1.0.0.7 HTTPD /GOFORM/WRLCLIENTSET GO STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability described as critical has been identified in Tenda F451 1.0.0.7. Affected by this issue is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. Such manipulation of the argument GO leads to stack-based overflow. This vulnerability is traded as CVE-2026-6121. The attack may be launched remotely. Furthermore, there is an exploit available. Detailsinfo A vulnerability was found in Tenda F451 1.0.0.7. It has been rated as critical. Affected by this issue is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. The manipulation of the argument GO with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-6121. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. The exploit is available 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 F451 Version 1.0.0.7 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: 8.8 VulDB Meta Temp Score: 8.0 VulDB Base Score: 8.8 VulDB Temp Score: 8.0 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: Stack-based overflow CWE: CWE-121 / CWE-119 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 04/11/2026 Advisory disclosed 04/11/2026 +0 days VulDB entry created 04/11/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: github.com Status: Not defined CVE: CVE-2026-6121 (🔒) GCVE (CVE): GCVE-0-2026-6121 GCVE (VulDB): GCVE-100-356984 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/11/2026 18:08 Changes: 04/11/2026 18:08 (58) Complete: 🔍 Submitter: Jimi Cache ID: 99:6CD:101 Submitinfo Accepted Submit #792865: Tenda F451_kfw_V1.0.0.7_cn_svn7958 V1.0.0.7 Buffer Overflow (by Jimi) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸