Vulnerability · Published Sep 9, 2021 · Assigned by krcert
CVE-2021-26608handysoft groupware arbitrary file download and execution vulnerability
High 8.8
In plain English
A high-severity security flaw in HShell.dll from handysoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 51.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| handysoft | HShell.dll | 1.7.4.52.0.3.54.0.1.6 |
Weakness: CWE-353 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H