Tenda W20E 15.11.0.6 POST Request goform/setPortMapping/ formSetPortMapping stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Tenda W20E 15.11.0.6 and classified as critical. This impacts the function formSetPortMapping of the file goform/setPortMapping/ of the component POST Request Handler. Executing a manipulation of the argument portMappingServer/portMappingProtocol/portMappingWan/porMappingtInternal/portMappingExternal can lead to stack-based overflow. This vulnerability is handled as CVE-2022-40855. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Tenda W20E 15.11.0.6 and classified as critical. This vulnerability affects the function formSetPortMapping of the file goform/setPortMapping/ of the component POST Request Handler. The manipulation of the argument portMappingServer/portMappingProtocol/portMappingWan/porMappingtInternal/portMappingExternal 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. CVE summarizes:

Tenda W20E router V15.11.0.6 contains a stack overflow in the function formSetPortMapping with post request 'goform/setPortMapping/'. This vulnerability allows attackers to cause a Denial of Service (DoS) or Remote Code Execution (RCE) via the portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal, and portMappingExternal parameters.

The weakness was released 09/23/2022. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-40855 since 09/19/2022. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/23/2025).

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

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍
Status: Not defined

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

09/19/2022 🔍
09/23/2022 +4 days 🔍
09/23/2022 +0 days 🔍
05/23/2025 +972 days 🔍

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2022-40855 (🔍)
GCVE (CVE): GCVE-0-2022-40855
GCVE (VulDB): GCVE-100-209416

Entryinfo

Created: 09/23/2022 19:56
Updated: 05/23/2025 00:47
Changes: 09/23/2022 19:56 (41), 10/23/2022 07:14 (11), 05/23/2025 00:47 (16)
Complete: 🔍
Cache ID: 216::103

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