High severity · published Jan 3, 2023
CVE-2022-40740
Realtek GPON router has insufficient filtering for special characters
7.2
CVSS
1.5%
EPSS
No
On KEV
Description
Realtek GPON router has insufficient filtering for special characters. A remote attacker authenticated as an administrator can exploit this vulnerability to perform command injection attacks, to execute arbitrary system command, manipulate system or disrupt service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
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
US
Usdk · Realtek
1.0; 2.0; 2.2 · source: NVD
XS
Xpon Software Development Kit · Realtek
1.9; 3.3; 4.0; 4.1 · source: NVD