Tenda F451 1.0.0.7_cn_svn7958 /goform/AdvSetWan fromAdvSetWan wanmode/PPPOEPassword stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k8.94

Summaryinfo

A vulnerability, which was classified as critical, has been found in Tenda F451 1.0.0.7_cn_svn7958. The impacted element is the function fromAdvSetWan of the file /goform/AdvSetWan. This manipulation of the argument wanmode/PPPOEPassword causes stack-based overflow. This vulnerability is handled as CVE-2026-6137. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Tenda F451 1.0.0.7_cn_svn7958. It has been declared as critical. Affected by this vulnerability is the function fromAdvSetWan of the file /goform/AdvSetWan. The manipulation of the argument wanmode/PPPOEPassword with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is 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). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-6137. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.

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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-21758). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

License

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

04/12/2026 Advisory disclosed
04/12/2026 +0 days VulDB entry created
04/13/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2026-6137 (🔒)
GCVE (CVE): GCVE-0-2026-6137
GCVE (VulDB): GCVE-100-357001
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/12/2026 09:28
Updated: 04/13/2026 03:44
Changes: 04/12/2026 09:28 (57), 04/13/2026 03:44 (1)
Complete: 🔍
Submitter: Jxm666
Cache ID: 216:699:103

Submitinfo

Accepted

  • Submit #792881: Tenda F451_kfw_V1.0.0.7_cn_svn7958 V1.0.0.7 Buffer Overflow (by Jxm666)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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