PT-2023-13901 · Realtek · Realtek Gpon Router

Published 2023-01-03 · Updated 2023-07-10 · CVE-2022-40740

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Realtek GPON router (affected versions not specified)

Description The issue is related to insufficient filtering for special characters in the Realtek GPON router. A remote attacker, who is authenticated as an administrator, can exploit this to perform command injection attacks. This allows the attacker to execute arbitrary system commands, manipulate the system, or disrupt the service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2022-40740

Affected Products

Realtek Gpon Router

References · 4

• https://osv.dev/vulnerability/CVE-2022-40740 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-40740 · Security Note
• https://t.me/cvenotify/41167 · Telegram Post
• https://twcert.org.tw/tw/cp-132-6831-19121-1.html · Note