High 8.8Published Jun 8, 2026

CVE-2026-11556Tenda F451 Web Management WriteFacMac formWriteFacMac os command injection

Updated under an hour ago (Oct 27, 2026, 10:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Tenda F451

Exploited in the last 30 days

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.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-78, CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Jun 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Tenda F451 tenda:f451_firmware	1.0.0.7; 1.0.0.9	CNA record

References

References

https://vuldb.com/vuln/369166	vdb-entry, technical-description
https://vuldb.com/vuln/369166/cti	signature, permissions-required
https://vuldb.com/cve/CVE-2026-11556	third-party-advisory
https://vuldb.com/submit/836476	third-party-advisory
https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formWriteFacMac2/formWriteFacMac.md	exploit
https://www.tenda.com.cn/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.