Medium severity · published Jun 3, 2022
CVE-2021-42892
In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware
4.3
CVSS
0.7%
EPSS
No
On KEV
Description
In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EF
Ex1200t Firmware · Totolink
4.1.2cu.5215 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-42892
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-42892
Exploit
https://github.com/p1Kk/vuln/blob/main/totolink_ex1200t_telnet_default.md
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9.8
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