#VU64150 Out-of-bounds write in NPort 5110 - CVE-2022-2044

Vulnerability identifier: #VU64150

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2044

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
NPort 5110
Hardware solutions / Firmware

Vendor: Moxa

Description

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

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can trigger out-of-bounds write and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NPort 5110: 2.10

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External links
https://www.moxa.com/en/support/product-support/security-advisory/nport5110-series-vulnerabilities
https://www.cisa.gov/uscert/ics/advisories/icsa-22-207-04

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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.