CVE-2026-5685 | Tenda CX12L 16.03.53.12 /goform/addressNat fromAddressNat page stack-based overflow

VDB-355512 · CVE-2026-5685 · GCVE-100-355512 TENDA CX12L 16.03.53.12 /GOFORM/ADDRESSNAT FROMADDRESSNAT PAGE STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.0 $0-$5k 2.80+ Summaryinfo A vulnerability labeled as critical has been found in Tenda CX12L 16.03.53.12. This vulnerability affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page results in stack-based overflow. This vulnerability is reported as CVE-2026-5685. The attack can be launched remotely. Moreover, an exploit is present. Detailsinfo A vulnerability, which was classified as critical, was found in Tenda CX12L 16.03.53.12. Affected is the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as 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). This is going to have an impact on confidentiality, integrity, and availability. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-5685. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known. 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 CX12L Version 16.03.53.12 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 04/06/2026 Advisory disclosed 04/06/2026 +0 days VulDB entry created 04/06/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: github.com Status: Not defined CVE: CVE-2026-5685 (🔒) GCVE (CVE): GCVE-0-2026-5685 GCVE (VulDB): GCVE-100-355512 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/06/2026 12:19 Changes: 04/06/2026 12:19 (57) Complete: 🔍 Submitter: lv1020 Cache ID: 99:EC4:101 Submitinfo Accepted Submit #792782: Tenda CX12L V16.03.53.12 Stack-based Buffer Overflow (by lv1020) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸