Vulnerability identifier: #VU63505

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26630

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
HANDY Groupware
Client/Desktop applications / Office applications

Vendor:

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in the ActiveX module. A remote attacker can trick a victim to download a specially crafted file and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66723

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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.