CVE-2022-40740

Realtek GPON router - Command Injection

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.

Remediation

Solution:

  • Contact tech support from Realtek

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.31%
Third-Party Advisory org.tw
Affected: Realtek GPON router
Published at:
Updated at:

References

Link Tags
https://www.twcert.org.tw/tw/cp-132-6831-19121-1.html vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-40740?
CVE-2022-40740 has been scored as a high severity vulnerability.
How to fix CVE-2022-40740?
To fix CVE-2022-40740: Contact tech support from Realtek
Is CVE-2022-40740 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-40740 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-40740?
CVE-2022-40740 affects Realtek GPON router.
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