Stack Overflow Vulnerability in Tenda W20E Router
CVE-2022-40855

9.8CRITICAL

Key Information:

Vendor

Tenda
Status
W20e Firmware
Vendor
CVE Published:
23 September 2022

What is CVE-2022-40855?

The Tenda W20E router, specifically version V15.11.0.6, is susceptible to a stack overflow vulnerability in the 'formSetPortMapping' function. Exploitation of this flaw can enable attackers to cause a Denial of Service (DoS) or execute arbitrary code remotely through manipulated parameters including portMappingServer, portMappingProtocol, portMappingWan, portMappingInternal, and portMappingExternal. This vulnerability underscores the importance of securing network devices against such critical flaws.

References

https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2022-40855 : Stack Overflow Vulnerability in Tenda W20E Router