How severe is CVE-2021-31519?

CVE-2021-31519 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-31519 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31519?

CVE-2021-31519 affects Trendmicro Housecall For Home Networks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-31519?

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-2021-31519 published?

CVE-2021-31519 was published on 2021-05-12 and last updated on 2026-06-17.

CVE-2021-31519

CVE-2021-31519 is a high-severity vulnerability in Trendmicro Housecall For Home Networks with a CVSS 3.x base score of 7.3. 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-276.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 4.4
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Trendmicro Housecall For Home Networks
Published: 2021-05-12
Last modified: 2026-06-17

Description

An incorrect permission vulnerability in the product installer folders for Trend Micro HouseCall for Home Networks version 5.3.1179 and below could allow an attacker to escalate privileges by placing arbitrary code on a specified folder and have that code be executed by an Administrator who is running a scan. 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-2021-31519?: An incorrect permission vulnerability in the product installer folders for Trend Micro HouseCall for Home Networks version 5.3.1179 and below could allow an attacker to escalate privileges by placing arbitrary code on a specified folder and have that code be executed by an Administrator who is running a scan. 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-2021-31519?: CVE-2021-31519 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-31519 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31519?: CVE-2021-31519 affects Trendmicro Housecall For Home Networks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-31519?: 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-2021-31519 published?: CVE-2021-31519 was published on 2021-05-12 and last updated on 2026-06-17.

References

Affected products (1)

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

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