CVE-2026-4252 CRITICAL

CVE-2026-4252: Tenda AC8 IPv6 check_is_ipv6 ip address for authentication

Vendor Tenda
Product AC8
Weakness CWE-291
Published March 16, 2026
Last update March 16, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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 AC8 16.03.50.11. Affected by this issue is the function check_is_ipv6 of the component IPv6 Handler. The manipulation leads to reliance on ip address for authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

Key dates

02Disclosure timeline

March 16, 2026 CVE published
March 16, 2026 Record updated