CVE-2022-40740

Realtek GPON router - Command Injection

Published Jan 3, 2023 CVSS 3.1 · 7.2 High EPSS 1.5% KEV · Not listed
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

Vendor Solution

Contact tech support from Realtek

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-44008 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.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00306}

epss

{'score': 0.00336}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
twcert
Published
Updated
Apr 10, 2025, 6:01 PM
Reserved
Sep 15, 2022, 12:00 AM
Status
Modified
Published
Jan 3, 2023, 3:15 AM
Modified
Jun 17, 2026, 5:01 AM