Tenda F451 1.0.0.7/1.0.0.9 Web Management Interface /goform/WriteFacMac formWriteFacMac mac os command injection

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k2.53

Summaryinfo

A vulnerability classified as critical was found in Tenda F451 1.0.0.7/1.0.0.9. The affected element is the function formWriteFacMac of the file /goform/WriteFacMac of the component Web Management Interface. Executing a manipulation of the argument mac can lead to os command injection. This vulnerability is handled as CVE-2026-11556. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability has been found in Tenda F451 1.0.0.7/1.0.0.9 and classified as critical. This vulnerability affects the function formWriteFacMac of the file /goform/WriteFacMac of the component Web Management Interface. The manipulation of the argument mac with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2026-11556. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/08/2026 Advisory disclosed
06/08/2026 +0 days VulDB entry created
06/08/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2026-11556 (🔒)
GCVE (CVE): GCVE-0-2026-11556
GCVE (VulDB): GCVE-100-369166
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/08/2026 08:00
Changes: 06/08/2026 08:00 (58)
Complete: 🔍
Submitter: hacker128
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #836476: Tenda Tenda F451 Wireless Router V1.0.0.7, V1.0.0.9 OS Command Injection (by hacker128)

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