CVE-2026-4903 HIGH

CVE-2026-4903: Tenda AC5 POST Request QuickIndex formQuickIndex memory corruption

Vendor Tenda
Product AC5
Weakness CWE-121
Published March 26, 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 flaw has been found in Tenda AC5 15.03.06.47. This vulnerability affects the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. This manipulation of the argument PPPOEPassword causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used.

Key dates

02Disclosure timeline

March 26, 2026 CVE published
March 27, 2026 Record updated