How severe is CVE-2020-21997?

CVE-2020-21997 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-21997 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-21997?

CVE-2020-21997 affects Smartwares Home Easy Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-21997?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-21997 published?

CVE-2020-21997 was published on 2021-04-29 and last updated on 2026-06-17.

CVE-2020-21997

CVE-2020-21997 is a high-severity vulnerability in Smartwares Home Easy Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Smartwares Home Easy Firmware
Published: 2021-04-29
Last modified: 2026-06-17

Description

Smartwares HOME easy <=1.0.9 is vulnerable to an unauthenticated database backup download and information disclosure vulnerability. An attacker could disclose sensitive and clear-text information resulting in authentication bypass, session hijacking and full system control.

Frequently asked questions

What is CVE-2020-21997?: Smartwares HOME easy <=1.0.9 is vulnerable to an unauthenticated database backup download and information disclosure vulnerability. An attacker could disclose sensitive and clear-text information resulting in authentication bypass, session hijacking and full system control.
How severe is CVE-2020-21997?: CVE-2020-21997 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-21997 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-21997?: CVE-2020-21997 affects Smartwares Home Easy Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-21997?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-21997 published?: CVE-2020-21997 was published on 2021-04-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:smartwares:home_easy_firmware:*:*:*:*:*:*:*:*

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →