Is CVE-2022-40740 actively exploited?

CVE-2022-40740 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2022-40740?

CVE-2022-40740 has a CVSS score of 7.2 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2022-40740?

Patch guidance is available from realtek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-40740.

Fix CVE-2022-40740 - HIGH realtek usdk

Q: Which products are affected by CVE-2022-40740?

7 products: realtek usdk, realtek usdk, realtek usdk, realtek xpon software development kit, realtek xpon software development kit, and 2 more.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: high
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-78 · OS Command InjectionNVD-CWE-Other

Metadata

Primary Vendor: REALTEK
Published: 1/3/2023
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

realtek : usdkrealtek : usdkrealtek : usdkrealtek : xpon_software_development_kitrealtek : xpon_software_development_kitrealtek : xpon_software_development_kitrealtek : xpon_software_development_kit

Remediation Guidance

Executive Summary

View on NIST NVD