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CVE-2026-3398

HIGH CVSS 4.0: 7.4 EPSS 0.09%
Updated Mar 02, 2026
Parameter Value
CVSS 7.4 (HIGH)
Type CWE-120 (Buffer Copy without Checking Size), CWE-119 (Buffer Overflow)
Public PoC No

A vulnerability was determined in Tenda F453 1.0.0.3. Affected is the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. Executing a manipulation of the argument wanmode/PPPOEPassword can lead to buffer overflow.

The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

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