High severity · published Dec 30, 2021
CVE-2021-20157
It is possible for an unauthenticated, malicious user to force the device to reboot due to a hidden administrative command
7.5
CVSS
1.6%
EPSS
No
On KEV
Description
It is possible for an unauthenticated, malicious user to force the device to reboot due to a hidden administrative command.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Tew-827dru Firmware · Trendnet
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20157
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20157
Exploit
https://www.tenable.com/security/research/tra-2021-54
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