Critical severity · published Feb 17, 2022
CVE-2021-45382
D-Link Multiple Routers Remote Code Execution Vulnerability
In wildKEV
9.8
CVSS
97.8%
EPSS
Yes
On KEV
Description
A Remote Command Execution (RCE) vulnerability exists in all series H/W revisions D-link DIR-810L, DIR-820L/LW, DIR-826L, DIR-830L, and DIR-836L routers via the DDNS function in ncc2 binary file. Note: DIR-810L, DIR-820L, DIR-830L, DIR-826L, DIR-836L, all hardware revisions, have reached their End of Life ("EOL") /End of Service Life ("EOS") Life-Cycle and as such this issue will not be patched.
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)97.8% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Apr 4, 2022
Federal remediation dueApr 25, 2022
Ransomware campaign useNot known
Affected products
Which versions
DF
Dir-810l Firmware · Dlink
All versions, or not specified · source: NVD
DF
Dir-820l Firmware · Dlink
All versions, or not specified · source: NVD
DF
Dir-820lw Firmware · Dlink
All versions, or not specified · source: NVD
DF
Dir-826l Firmware · Dlink
All versions, or not specified · source: NVD
DF
Dir-830l Firmware · Dlink
All versions, or not specified · source: NVD
DF
Dir-836l Firmware · Dlink
All versions, or not specified · source: NVD
MR
Multiple Routers · D-Link
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45382
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45382
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264
x_refsource_MISC
https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md
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D-Link DIR810LA1_FW102B22 was discovered to contain a command injection vulnerability via the Ping_addr function