CVE-2021-26630 json
HANDY Groupware file download and execute vulnerability
published 2022-05-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13424
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
Improper input validation vulnerability in HANDY Groupware’s ActiveX moudle allows attackers to download or execute arbitrary files. This vulnerability can be exploited by using the file download or execution path as the parameter value of the vulnerable function.
Patch / fix
- handysoft groupware 1.7.4.7, 2.0.3.7, 4.0.1.8
Exploit prediction
0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Handysoft Co.,Ltd HANDY Groupware
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
krcert.or.kr
/krcert/secNoticeView.do?bulletin_writing_sequence=66723
third-party-advisory
Sources
- CVE List CVE-2021-26630
- NVD CVE-2021-26630
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