CVE-2026-5155 | Tenda CH22 1.0.0.1 Parameter /goform/AdvSetWan fromAdvSetWan wanmode stack-based overflow

VDB-354187 · CVE-2026-5155 · GCVE-100-354187 TENDA CH22 1.0.0.1 PARAMETER /GOFORM/ADVSETWAN FROMADVSETWAN WANMODE STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability, which was classified as critical, has been found in Tenda CH22 1.0.0.1. This impacts the function fromAdvSetWan of the file /goform/AdvSetWan of the component Parameter Handler. This manipulation of the argument wanmode causes stack-based overflow. This vulnerability is tracked as CVE-2026-5155. The attack is possible to be carried out remotely. Moreover, an exploit is present. Detailsinfo A vulnerability classified as critical was found in Tenda CH22 1.0.0.1. Affected by this vulnerability is the function fromAdvSetWan of the file /goform/AdvSetWan of the component Parameter Handler. The manipulation of the argument wanmode with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is 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). As an impact it is known to affect confidentiality, integrity, and availability. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-5155. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. It is possible to download the exploit 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 CH22 Version 1.0.0.1 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 03/30/2026 Advisory disclosed 03/30/2026 +0 days VulDB entry created 03/30/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: github.com Status: Not defined CVE: CVE-2026-5155 (🔒) GCVE (CVE): GCVE-0-2026-5155 GCVE (VulDB): GCVE-100-354187 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/30/2026 15:38 Changes: 03/30/2026 15:38 (58) Complete: 🔍 Submitter: LtzHust2 Cache ID: 99:B23:101 Submitinfo Accepted Submit #780207: Tenda CH22 V1.0.0.1 Stack-based Buffer Overflow (by LtzHust2) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸