CVE-2021-42110
An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard...
An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard user can escalate privileges to SYSTEM if the FTP module is installed, because of DLL hijacking.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard user can escalate privileges to SYSTEM if the FTP module is installed, because of DLL hijacking.
- Record
CVE-2021-42110- CVSS 3.1
- 7.1 High
CVSS:3.1/AC:L/AV:A/A:N/C:H/I:L/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2021-29096
An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard user can escalate privileges to SYSTEM if the FTP module is installed, because of DLL hijacking.
- Record
EUVD-2021-29096- CVSS 3.1
- 7.1 High
CVSS:3.1/AC:L/AV:A/A:N/C:H/I:L/PR:N/S:U/UI:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jx3f-hj4m-h7p9
An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard...
An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard user can escalate privileges to SYSTEM if the FTP module is installed, because of DLL hijacking.
- Record
GHSA-jx3f-hj4m-h7p9- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard user can escalate privileges to SYSTEM if the FTP module is installed, because of DLL hijacking.
- Record
CVE-2021-42110- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.2 Medium
AV:L/AC:H/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-42110 is a high vulnerability (CVSS 7.1) in Allegro, published December 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.