Vulnerability · Published Jan 3, 2023 · Assigned by twcert
CVE-2022-40740Realtek GPON router - Command Injection
High 7.2
In plain English
A high-severity OS command injection in GPON router from Realtek. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)1.5%top 25.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Realtek | GPON router | SDK 1.9 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H