CVE-2026-6015 | Tenda AC9 15.03.02.13 POST Request /goform/QuickIndex formQuickIndex PPPOEPassword stack-based overflow

VDB-356571 · CVE-2026-6015 · GCVE-100-356571 TENDA AC9 15.03.02.13 POST REQUEST /GOFORM/QUICKINDEX FORMQUICKINDEX PPPOEPASSWORD STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability was found in Tenda AC9 15.03.02.13. It has been classified as critical. The affected element is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. Performing a manipulation of the argument PPPOEPassword results in stack-based overflow. This vulnerability is identified as CVE-2026-6015. The attack can be initiated remotely. Additionally, an exploit exists. Detailsinfo A vulnerability classified as critical has been found in Tenda AC9 15.03.02.13. This affects the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword 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. It is possible to read the advisory at lavender-bicycle-a5a.notion.site. This vulnerability is uniquely identified as CVE-2026-6015. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known. The exploit is shared for download at lavender-bicycle-a5a.notion.site. 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 AC9 Version 15.03.02.13 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 04/09/2026 Advisory disclosed 04/09/2026 +0 days VulDB entry created 04/09/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: lavender-bicycle-a5a.notion.site Status: Not defined CVE: CVE-2026-6015 (🔒) GCVE (CVE): GCVE-0-2026-6015 GCVE (VulDB): GCVE-100-356571 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/09/2026 16:43 Changes: 04/09/2026 16:43 (58) Complete: 🔍 Submitter: wxhwxhwxh_mie Cache ID: 99:366:101 Submitinfo Accepted Submit #791828: Tenda AC9 AC9 V1.0 V15.03.02.13 Buffer Overflow (by wxhwxhwxh_mie) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸