Is CVE-2022-21742 actively exploited?

CVE-2022-21742 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2022-21742?

CVE-2022-21742 has a CVSS score of 6.2 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2022-21742?

Patch guidance is available from realtek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-21742.

CVE-2022-21742 - remediation guidance & executive summary

Q: Which products are affected by CVE-2022-21742?

21 products: realtek rtl8156 firmware, realtek rtl8156 firmware, realtek rtl8156 firmware, realtek rtl8156b firmware, realtek rtl8156b firmware, and 16 more.

Description

Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-120 CWE-120

Metadata

Primary Vendor: REALTEK
Published: 6/20/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

realtek : rtl8156_firmwarerealtek : rtl8156_firmwarerealtek : rtl8156_firmwarerealtek : rtl8156b_firmwarerealtek : rtl8156b_firmwarerealtek : rtl8156b_firmwarerealtek : rtl8153_firmwarerealtek : rtl8153_firmwarerealtek : rtl8153_firmwarerealtek : rtl8153b_firmwarerealtek : rtl8153b_firmwarerealtek : rtl8153b_firmwarerealtek : rtl8154_firmwarerealtek : rtl8154_firmwarerealtek : rtl8154_firmwarerealtek : rtl8154b_firmwarerealtek : rtl8154b_firmwarerealtek : rtl8154b_firmwarerealtek : rtl8152b_firmwarerealtek : rtl8152b_firmwarerealtek : rtl8152b_firmware

Remediation Guidance

Executive Summary

View on NIST NVD