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CVE-2026-3974

HIGH CVSS 4.0: 7.4 EPSS 0.09%
Updated Mar 12, 2026
Parameter Value
CVSS 7.4 (HIGH)
Type CWE-121 (Stack-based Buffer Overflow), CWE-119 (Buffer Overflow)
Public PoC No

A vulnerability was identified in Tenda W3 1.0.0.3(2204). This vulnerability affects the function formexeCommand of the file /goform/exeCommand of the component HTTP Handler. Such manipulation of the argument cmdinput leads to stack-based buffer overflow.

The attack may be performed from remote. The exploit is publicly available and might be used.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0