CVE-2026-5204 | Tenda CH22 1.0.0.1 Parameter /goform/webtypelibrary formWebTypeLibrary webSiteId stack-based overflow

VDB-354332 · CVE-2026-5204 · GCVE-100-354332 TENDA CH22 1.0.0.1 PARAMETER /GOFORM/WEBTYPELIBRARY FORMWEBTYPELIBRARY WEBSITEID STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability was found in Tenda CH22 1.0.0.1. It has been declared as critical. Affected by this vulnerability is the function formWebTypeLibrary of the file /goform/webtypelibrary of the component Parameter Handler. Such manipulation of the argument webSiteId leads to stack-based overflow. This vulnerability is uniquely identified as CVE-2026-5204. The attack can be launched remotely. Moreover, an exploit is present. Detailsinfo A vulnerability, which was classified as critical, has been found in Tenda CH22 1.0.0.1. Affected by this issue is the function formWebTypeLibrary of the file /goform/webtypelibrary of the component Parameter Handler. The manipulation of the argument webSiteId 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-2026-5204. 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 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 03/31/2026 Advisory disclosed 03/31/2026 +0 days VulDB entry created 03/31/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: github.com Status: Not defined CVE: CVE-2026-5204 (🔒) GCVE (CVE): GCVE-0-2026-5204 GCVE (VulDB): GCVE-100-354332 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/31/2026 10:48 Changes: 03/31/2026 10:48 (58) Complete: 🔍 Submitter: LtzHust2 Cache ID: 99:44B:101 Submitinfo Accepted Submit #780209: Tenda CH22 V1.0.0.1 Stack-based Buffer Overflow (by LtzHust2) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸