CVE-2021-32457

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl to escalate privileges on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
Trend Micro	Trend Micro Home Network Security	6.6.604 and below

References

https://helpcenter.trendmicro.com/en-us/article/TMKA-10337Vendor Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230Exploit, Third Party Advisory
https://helpcenter.trendmicro.com/en-us/article/TMKA-10337Vendor Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230Exploit, Third Party Advisory

Timeline

Published: May 26, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

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