CVE-2021-32537

Name: CVE-2021-32537
Creator: NVD / NIST
Published: 2021-07-07T14:15:12.17+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2021-32537 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Realtek HAD contains a driver crashed vulnerability which allows local side attackers to send a special string to the kernel driver in a user’s mode. Due to unexpected commands, the kernel driver will cause the system crashed.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

Realtek HAD contains a driver crashed vulnerability which allows local side attackers to send a special string to the kernel driver in a user’s mode. Due to unexpected commands, the kernel driver will cause the system crashed.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Probability

0.44%

34.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Realtek	Hda Driver	>= 8155, <= 9150

References

http://packetstormsecurity.com/files/163498/Realtek-RTKVHD64.sys-Out-Of-Bounds-Access.htmlExploit, Third Party Advisory, VDB Entry
https://www.twcert.org.tw/tw/cp-132-4813-7b578-1.htmlThird Party Advisory
http://packetstormsecurity.com/files/163498/Realtek-RTKVHD64.sys-Out-Of-Bounds-Access.htmlExploit, Third Party Advisory, VDB Entry
https://www.twcert.org.tw/tw/cp-132-4813-7b578-1.htmlThird Party Advisory

Timeline

Published: Jul 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32537?

How severe is CVE-2021-32537?

CVE-2021-32537 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32537?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32537?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST