CVE-2026-4961 HIGH

CVE-2026-4961: Tenda AC6 POST Request QuickIndex formQuickIndex stack-based overflow

Vendor Tenda
Product AC6
Weakness CWE-121
Published March 27, 2026
Last update March 27, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 27, 2026 CVE published
March 27, 2026 Record updated