Vulnerability identifier: #VU58822

Vulnerability risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40393

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gerbv
Web applications / Modules and components for CMS

Vendor: gerbv

Description

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

The vulnerability exists due to a boundary error in the RS-274X aperture macro variables handling functionality. A remote attacker can create a specially crafted gerber file, trigger memory corruption 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

Gerbv: 2.7.0

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1404

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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.