Tenda F451 1.0.0.7 httpd /goform/WrlclientSet GO stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k3.70-

Summaryinfo

A vulnerability described as critical has been identified in Tenda F451 1.0.0.7. Affected by this issue is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. Such manipulation of the argument GO leads to stack-based overflow. This vulnerability is traded as CVE-2026-6121. The attack may be launched remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in Tenda F451 1.0.0.7. It has been rated as critical. Affected by this issue is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. The manipulation of the argument GO with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-6121. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known.

The exploit is available 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-21720). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

04/11/2026 Advisory disclosed
04/11/2026 +0 days VulDB entry created
04/12/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2026-6121 (🔒)
GCVE (CVE): GCVE-0-2026-6121
GCVE (VulDB): GCVE-100-356984
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/11/2026 18:08
Updated: 04/12/2026 10:10
Changes: 04/11/2026 18:08 (58), 04/12/2026 10:10 (1)
Complete: 🔍
Submitter: Jimi
Cache ID: 216:080:103

Submitinfo

Accepted

  • Submit #792865: Tenda F451_kfw_V1.0.0.7_cn_svn7958 V1.0.0.7 Buffer Overflow (by Jimi)

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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