TI-2021-12138 Aliases CVE-2021-32457 GHSA-gc5v-4mhp-vqp4

Out-of-bounds write in Trend Micro Home Network Security

LOW 35CWE-787Published 2021-05-26 · Updated 2024-08-03

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.00511 43rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Trend Micro	Trend Micro Home Network Security	up to 6.6.604	—	No fix listed	CNA

Trend Micro Home Network Security VendorTrend Micro Affected up to 6.6.604 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:trendmicro:home_network_security::::::::	up to 6.6.604	Vulnerable	Trendmicro

cpe:2.3:a:trendmicro:home_network_security:*:*:*:*:*:*:*:* Versions up to 6.6.604 Vulnerable ·Trendmicro

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-32457
2026-10-03 Alias added: GHSA-gc5v-4mhp-vqp4

References

Exploit 1

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230

Advisory 1

https://helpcenter.trendmicro.com/en-us/article/TMKA-10337

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TI-2022-10115 Insufficient verification of data authenticity in Trend Micro Apex Central KEVCVSS 3.1CRITICAL 9.8
TI-2020-06895 Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that… KEVCVSS 3.1CRITICAL 9.8
TI-2021-14867 Unrestricted file upload in Trend Micro Apex One KEVCVSS 3.1HIGH 8.8
TI-2020-06795 Injection in Trend Micro OfficeScan, Trend Micro Apex One, Trend Micro Worry-Free… KEVCVSS 3.1HIGH 8.8
TI-2020-06794 A migration tool component of Trend Micro Apex One (2019) and OfficeScan XG contains a… KEVCVSS 3.1HIGH 8.8

See all 603 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences