How severe is CVE-2020-28918?

CVE-2020-28918 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-28918 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28918?

CVE-2020-28918 affects Deepnetsecurity Dualshield. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28918?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-28918 published?

CVE-2020-28918 was published on 2021-02-16 and last updated on 2026-06-17.

CVE-2020-28918

CVE-2020-28918 is a medium-severity vulnerability in Deepnetsecurity Dualshield with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Deepnetsecurity Dualshield
Published: 2021-02-16
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-28918?: 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.
How severe is CVE-2020-28918?: CVE-2020-28918 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-28918 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28918?: CVE-2020-28918 affects Deepnetsecurity Dualshield. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28918?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-28918 published?: CVE-2020-28918 was published on 2021-02-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:deepnetsecurity:dualshield:5.9.8.0821:*:*:*:*:*:*:*