CVE-2022-21742

Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family - Buffer Overflow

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.

Remediation

Solution:

  • Update version to v10.50

Category

6.2
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory org.tw
Affected: Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family
Affected: Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family
Affected: Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2022-21742?
CVE-2022-21742 has been scored as a medium severity vulnerability.
How to fix CVE-2022-21742?
To fix CVE-2022-21742: Update version to v10.50
Is CVE-2022-21742 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-21742 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21742?
CVE-2022-21742 affects Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family, Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family, Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.