CVE-2020-28918
DualShield 5.9.8.0821 allows username enumeration on its login form. A valid username results in...
DualShield 5.9.8.0821 allows username enumeration on its login form. A valid username results in prompting for the password, whereas an invalid one will produce an "unknown username" error message.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
DualShield 5.9.8.0821 allows username enumeration on its login form. A valid username results in prompting for the password, whereas an invalid one will produce an "unknown username" error message.
- Record
CVE-2020-28918- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2020-21309
DualShield 5.9.8.0821 allows username enumeration on its login form. A valid username results in prompting for the password, whereas an invalid one will produce an "unknown username" error message.
- Record
EUVD-2020-21309- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gw6r-2xfv-2c8w
DualShield 5.9.8.0821 allows username enumeration on its login form. A valid username results in...
DualShield 5.9.8.0821 allows username enumeration on its login form. A valid username results in prompting for the password, whereas an invalid one will produce an "unknown username" error message.
- Record
GHSA-gw6r-2xfv-2c8w- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
NVD
DualShield 5.9.8.0821 allows username enumeration on its login form. A valid username results in prompting for the password, whereas an invalid one will produce an "unknown username" error message.
- Record
CVE-2020-28918- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28918 is a medium vulnerability (CVSS 5.3) in Deepnetsecurity Dualshield, published February 16, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.10%, the 66th percentile. No source names a fixed version.