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Vulnerability · Published Jun 8, 2026 · Assigned by VulDB

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

High 8.8

In plain English

A high-severity OS command injection in F451 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.6%top 23.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Tenda F451 1.0.0.71.0.0.9

Weakness: CWE-78, CWE-77 · Vector: 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

References