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CVE-2026-4961

HIGH CVSS 4.0: 7.4 EPSS 0.08%
Updated Mar 31, 2026
Tenda
Parameter Value
CVSS 7.4 (HIGH)
Type CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow), CWE-119 (Buffer Overflow)
Vendor Tenda
Public PoC No

A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword leads to stack-based buffer overflow.

The attack is possible to be carried out remotely. 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

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Tenda Ac6_Firmware
cpe:2.3:o:tenda:ac6_firmware:15.03.05.16:*:*:*:*:*:*:*
Tenda Ac6
cpe:2.3:h:tenda:ac6:1.0:*:*:*:*:*:*:*