CVE-2021-26608 — HIGH (8.8)

Vulnerability Description

An arbitrary file download and execution vulnerability was found in the HShell.dll of handysoft Co., Ltd groupware ActiveX module. This issue is due to missing support for integrity check of download URL or downloaded file hash.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Handysoft	Hshell	1.7.4.5
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-353 CWE-345

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36239Third Party Advisory
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36239Third Party Advisory

FAQ

What is CVE-2021-26608?

CVE-2021-26608 is a vulnerability with a CVSS score of 8.8 (HIGH). An arbitrary file download and execution vulnerability was found in the HShell.dll of handysoft Co., Ltd groupware ActiveX module. This issue is due to missing support for integrity check of download ...

How severe is CVE-2021-26608?

CVE-2021-26608 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26608?

Check the references section above for vendor advisories and patch information. Affected products include: Handysoft Hshell, Microsoft Windows.