CVE-2022-40740

moderate-risk

Published 2023-01-03

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.

Do I need to act?

1.3% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.2/10 High

NETWORK / LOW complexity

Affected Products (7)

Usdk

Xpon Software Development Kit

Affected Vendors

Realtek

References (2)

Third Party Advisory https://www.twcert.org.tw/tw/cp-132-6831-19121-1.html

/ 100

moderate-risk

Severity 26/34 · High

Exploitability 4/34 · Minimal

Exposure 14/34 · Moderate