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Fencer Intel
high 7.3

CVE-2021-31519 json

An incorrect permission vulnerability in the product installer folders for Trend Micro HouseCall for Home Networks version 5.3.1179 and bel…

published 5y ago modified 4mo ago also EUVD-2021-18419

cvss
7.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits
0
none known

Summary

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.

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Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Trend Micro Trend Micro HouseCall for Home Networks

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.