How severe is CVE-2021-32466?

CVE-2021-32466 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-32466 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32466?

CVE-2021-32466 affects Trendmicro Housecall For Home Networks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32466?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-32466 published?

CVE-2021-32466 was published on 2021-09-29 and last updated on 2026-06-17.

CVE-2021-32466

CVE-2021-32466 is a high-severity vulnerability in Trendmicro Housecall For Home Networks with a CVSS 3.x base score of 7.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-427.

Key facts

Severity: High (CVSS 3.x base score 7.0)
CVSS v2: 6.9
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Trendmicro Housecall For Home Networks
Published: 2021-09-29
Last modified: 2026-06-17

Description

An uncontrolled search path element privilege escalation vulnerability in Trend Micro HouseCall for Home Networks version 5.3.1225 and below could allow an attacker to escalate privileges by placing a custom crafted file in a specific directory to load a malicious library. Please note that an attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability.

Frequently asked questions

What is CVE-2021-32466?: An uncontrolled search path element privilege escalation vulnerability in Trend Micro HouseCall for Home Networks version 5.3.1225 and below could allow an attacker to escalate privileges by placing a custom crafted file in a specific directory to load a malicious library. Please note that an attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability.
How severe is CVE-2021-32466?: CVE-2021-32466 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-32466 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32466?: CVE-2021-32466 affects Trendmicro Housecall For Home Networks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32466?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-32466 published?: CVE-2021-32466 was published on 2021-09-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:trendmicro:housecall_for_home_networks:*:*:*:*:*:*:*:*

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