CVE-2026-4974 | Tenda AC7 15.03.06.44 POST Request /goform/SetSysTimeCfg fromSetSysTime stack-based overflow

VDB-353861 · CVE-2026-4974 · GCVE-100-353861 TENDA AC7 15.03.06.44 POST REQUEST /GOFORM/SETSYSTIMECFG FROMSETSYSTIME STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.0 $0-$5k 1.44+ Summaryinfo A vulnerability marked as critical has been reported in Tenda AC7 15.03.06.44. This affects the function fromSetSysTime of the file /goform/SetSysTimeCfg of the component POST Request Handler. The manipulation of the argument Time leads to stack-based overflow. This vulnerability is documented as CVE-2026-4974. The attack can be initiated remotely. Additionally, an exploit exists. Detailsinfo A vulnerability was found in Tenda AC7 15.03.06.44. It has been rated as critical. This issue affects the function fromSetSysTime of the file /goform/SetSysTimeCfg of the component POST Request Handler. The manipulation of the argument time 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 at lavender-bicycle-a5a.notion.site. The identification of this vulnerability is CVE-2026-4974. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The exploit is available 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 AC7 Version 15.03.06.44 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 03/27/2026 Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: lavender-bicycle-a5a.notion.site Status: Not defined CVE: CVE-2026-4974 (🔒) GCVE (CVE): GCVE-0-2026-4974 GCVE (VulDB): GCVE-100-353861 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/27/2026 10:01 Changes: 03/27/2026 10:01 (58) Complete: 🔍 Submitter: wxhwxhwxh_mie Cache ID: 99:406:101 Submitinfo Accepted Submit #778207: Tenda AC7 AC7V1.0 V15.03.06.44 Buffer Overflow (by wxhwxhwxh_mie) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸