#VU56638 Input validation error in Home Network Security - CVE-2021-31517

Vulnerability identifier: #VU56638

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-31517

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Home Network Security
Hardware solutions / Routers for home users

Vendor: Trend Micro

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input while parsing files. A remote attacker can pass specially crafted file to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Home Network Security: 6.1.567 - 6.5.599

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External links
https://helpcenter.trendmicro.com/en-us/article/TMKA-10312

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.