#VU21473 Stack-based buffer overflow in Moxa EDR-810

Vulnerability identifier: #VU21473

Vulnerability risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: N/A

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moxa EDR-810
Server applications / SCADA systems

Vendor: Moxa

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within multiple functions in the web server. A remote authenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moxa EDR-810: 3.11 - 5.1

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External links
https://www.moxa.com/en/support/support/security-advisory/edr-810-series-secure-routers-vulnerability

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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