Critical severity · published Dec 30, 2021
CVE-2021-20149
Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient access controls for the WAN interface
9.8
CVSS
1.5%
EPSS
No
On KEV
Description
Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient access controls for the WAN interface. The default iptables ruleset for governing access to services on the device only apply to IPv4. All services running on the devices are accessible via the WAN interface via IPv6 by default.
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)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Tew-827dru Firmware · Trendnet
2.08b01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20149
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20149
Third Party Advisory
https://www.tenable.com/security/research/tra-2021-54
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