CVE-2021-26608

moderate-risk
Published 2021-09-09

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.

Do I need to act?

-
0.23% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (3)

Hshell
Hshell
Hshell

Affected Vendors

Handysoft

References (2)

Third Party Advisory https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36239
Third Party Advisory https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36239
40
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 1/34 · Minimal
Exposure 9/34 · Low