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Description

A security flaw has been discovered in Tenda F451 1.0.0.7/1.0.0.9. Impacted is the function formWriteFacMac of the file /goform/WriteFacMac of the component Web Management Interface. Performing a manipulation of the argument mac results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

PUBLISHED Reserved 2026-06-08 | Published 2026-06-08 | Updated 2026-06-08 | Assigner VulDB




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

1.0.0.7
affected

1.0.0.9
affected

Timeline

2026-06-08:Advisory disclosed
2026-06-08:VulDB entry created
2026-06-08:VulDB entry last update

Credits

hacker128 (VulDB User) reporter

References

vuldb.com/vuln/369166 (VDB-369166 | Tenda F451 Web Management WriteFacMac formWriteFacMac os command injection) vdb-entry technical-description

vuldb.com/vuln/369166/cti (VDB-369166 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-11556 (CVE-2026-11556 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/836476 (Submit #836476 | Tenda Tenda F451 Wireless Router V1.0.0.7, V1.0.0.9 OS Command Injection) third-party-advisory

github.com/...orts/Tenda/formWriteFacMac2/formWriteFacMac.md exploit

www.tenda.com.cn/ product

cve.org (CVE-2026-11556)

nvd.nist.gov (CVE-2026-11556)

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