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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Tenda AC8 affected
Version Status Constraints
16.03.50.11 affected —

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Project Subscriptions

Vendors Products
Tenda Subscribe
Ac8 Firmware Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/digitalandrew/tenda_ac8_v5/blob/main/poc_ipv6_auth_bypass.py cve-icon cve-icon
https://vuldb.com/?ctiid.351210 cve-icon cve-icon
https://vuldb.com/?id.351210 cve-icon cve-icon
https://vuldb.com/?submit.771759 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Mon, 16 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 16 Mar 2026 17:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Tenda AC8 IPv6 check_is_ipv6 ip address for authentication
First Time appeared Tenda
Tenda ac8 Firmware
Weaknesses CWE-287
CWE-291
CPEs cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tenda
Tenda ac8 Firmware
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:W/RC:UR'}

cvssV3_0

{'score': 9.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R'}

cvssV4_0

{'score': 9.3, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-16T18:07:41.022Z

Reserved: 2026-03-16T06:16:02.051Z

Link: CVE-2026-4252

cve-icon Vulnrichment

Updated: 2026-03-16T18:07:36.228Z

cve-icon NVD

Status : Received

Published: 2026-03-16T17:16:32.057

Modified: 2026-03-16T17:16:32.057

Link: CVE-2026-4252

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses