CVE-2026-4252

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/digitalandrew/tenda_ac8_v5/blob/main/poc_ipv6_auth_bypass.py
https://vuldb.com/?ctiid.351210
https://vuldb.com/?id.351210
https://vuldb.com/?submit.771759
https://www.tenda.com.cn/

Configurations

No configuration.

History

16 Mar 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-16 17:16

Updated : 2026-03-17 14:20

NVD link : CVE-2026-4252

Mitre link : CVE-2026-4252

CVE.ORG link : CVE-2026-4252

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

CWE-291

Reliance on IP Address for Authentication

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