Critical severity · published Sep 23, 2022
CVE-2022-40855
Tenda W20E router V15.11.0.6 contains a stack overflow in the function formSetPortMapping with post request 'goform/setPortMapping/'
9.8
CVSS
14.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)14.1% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WF
W20e Firmware · Tenda
15.11.0.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-40855
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-40855
Exploit
https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/formSetPortMapping.md
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