CVE-2022-40740

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.
OS Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
twcertCNA
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVEADP
---
---
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 61%
VendorProductVersion
realtekusdk
1.0
realtekusdk
2.0
realtekusdk
2.2
realtekxpon_software_development_kit
1.9
realtekxpon_software_development_kit
3.3
realtekxpon_software_development_kit
4.0
realtekxpon_software_development_kit
4.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.twcert.org.tw/tw/cp-132-6831-19121-1.html
https://www.twcert.org.tw/tw/cp-132-6831-19121-1.html