Out-of-bounds write in Trend Micro Home Network Security
Priority LOW 34CWE-787Published · Updated
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 which could lead to code execution 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 0.00392 33rd percentileScored 2026-11-07
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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:trendmicro:home_network_security:*:*:*:en:*:*:*:* | up to 6.6.604 | Vulnerable | Trendmicro |
| cpe:2.3:a:trendmicro:home_network_security:*:*:*:ja:*:*:*:* | up to 6.6.604 | Vulnerable | Trendmicro |
| cpe:2.3:a:trendmicro:home_network_security:*:*:*:zh:*:*:*:* | up to 6.6.604 | Vulnerable | Trendmicro |
- cpe:2.3:a:trendmicro:home_network_security:*:*:*:en:*:*:*:* Versions up to 6.6.604 Vulnerable ·Trendmicro
- cpe:2.3:a:trendmicro:home_network_security:*:*:*:ja:*:*:*:* Versions up to 6.6.604 Vulnerable ·Trendmicro
- cpe:2.3:a:trendmicro:home_network_security:*:*:*:zh:*:*:*:* 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-2021-32458
- 2026-10-03 Alias added: GHSA-pf2v-6j36-j2xg
References
More Trend Micro vulnerabilities
- TI-2025-34668 OS command injection in Trend Micro Apex One KEVCVSS 3.1CRITICAL 9.8
- 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
Sources
- CVE-2021-32458 · CVE Program
- CVE-2021-32458 · NVD
- FIRST EPSS
- GHSA-pf2v-6j36-j2xg · GitHub Advisory Database · CC BY 4.0
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