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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.

PUBLISHED Reserved 2026-03-16 | Published 2026-03-16 | Updated 2026-03-16 | Assigner VulDB




MEDIUM: 5.1CVSS: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
MEDIUM: 4.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 4.7CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.8AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

16.03.50.11
affected

Timeline

2026-03-16:Advisory disclosed
2026-03-16:VulDB entry created
2026-03-16:VulDB entry last update

Credits

DigitalAndrew (VulDB User) reporter

References

vuldb.com/?id.351211 (VDB-351211 | Tenda AC8 Web UploadCfg route_set_user_policy_rule os command injection) vdb-entry technical-description

vuldb.com/?ctiid.351211 (VDB-351211 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.771771 (Submit #771771 | Tenda AC8 V5 V16.03.50.11 OS Command Injection) third-party-advisory

github.com/...nda_ac8_v5/blob/main/poc_cmdi_config_upload.py exploit

www.tenda.com.cn/ product

cve.org (CVE-2026-4253)

nvd.nist.gov (CVE-2026-4253)

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