Critical severity · published Apr 8, 2022
CVE-2021-43517
FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530
9.8
CVSS
1.7%
EPSS
No
On KEV
Description
FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.
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)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Fi9805e Firmware · Foscam
4.02.r12.00018510.10012.143900.00000 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43517
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43517
Exploit
https://habr.com/ru/post/486856/
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