A security flaw has been discovered in Tenda AC8 16.03.50.11. This affects the function route_set_user_policy_rule of the file /cgi-bin/UploadCfg of the component Web Interface. The manipulation of the argument wans.policy.list1 results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Multiple

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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 —

No data.

No data.

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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_cmdi_config_upload.py cve-icon cve-icon
https://vuldb.com/?ctiid.351211 cve-icon cve-icon
https://vuldb.com/?id.351211 cve-icon cve-icon
https://vuldb.com/?submit.771771 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Mon, 16 Mar 2026 17:30:00 +0000

Type Values Removed Values Added
Description A security flaw has been discovered in Tenda AC8 16.03.50.11. This affects the function route_set_user_policy_rule of the file /cgi-bin/UploadCfg of the component Web Interface. The manipulation of the argument wans.policy.list1 results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
Title Tenda AC8 Web UploadCfg route_set_user_policy_rule os command injection
First Time appeared Tenda
Tenda ac8 Firmware
Weaknesses CWE-77
CWE-78
CPEs cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tenda
Tenda ac8 Firmware
References
Metrics cvssV2_0

{'score': 5.8, 'vector': 'AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 4.7, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-16T18:01:14.327Z

Reserved: 2026-03-16T06:16:07.224Z

Link: CVE-2026-4253

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-16T18:16:10.540

Modified: 2026-03-16T18:16:10.540

Link: CVE-2026-4253

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses