CVE-2026-6199 | Tenda F456 1.0.0.5 /goform/qossetting fromqossetting page stack-based overflow

VDB-357121 · CVE-2026-6199 · SUBMIT #357121 TENDA F456 1.0.0.5 /GOFORM/QOSSETTING FROMQOSSETTING PAGE STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.0 $0-$5k 2.99+ Summaryinfo A vulnerability identified as critical has been detected in Tenda F456 1.0.0.5. The affected element is the function fromqossetting of the file /goform/qossetting. This manipulation of the argument page causes stack-based overflow. This vulnerability is handled as CVE-2026-6199. The attack can be initiated remotely. Additionally, an exploit exists. Detailsinfo A vulnerability classified as critical was found in Tenda F456 1.0.0.5. Affected by this vulnerability is the function fromqossetting of the file /goform/qossetting. The manipulation of the argument page 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. The advisory is shared at github.com. This vulnerability is known as CVE-2026-6199. 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 F456 Version 1.0.0.5 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 04/13/2026 Advisory disclosed 04/13/2026 +0 days VulDB entry created 04/13/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: github.com Status: Not defined CVE: CVE-2026-6199 (🔒) GCVE (CVE): GCVE-0-2026-6199 GCVE (VulDB): GCVE-100-357121 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/13/2026 10:53 Changes: 04/13/2026 10:53 (57) Complete: 🔍 Submitter: LtzHuster Cache ID: 99:2A3:101 Submitinfo Accepted Submit #797471: Tenda F456 v1.0.0.5 Stack-based Buffer Overflow (by LtzHuster) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸