How severe is CVE-2020-2506?

CVE-2020-2506 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2020-2506 being actively exploited?

Yes. CVE-2020-2506 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-25, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-2506?

CVE-2020-2506 affects Qnap Helpdesk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-2506?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-2506 have an EU (EUVD) identifier?

Yes. CVE-2020-2506 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-22299. It is also flagged as exploited in the EUVD (since 2022-03-25).

When was CVE-2020-2506 published?

CVE-2020-2506 was published on 2021-02-03 and last updated on 2026-06-17.

CVE-2020-2506

CVE-2020-2506 is a high-severity vulnerability in Qnap Helpdesk with a CVSS 3.x base score of 7.3. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-25). The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-03-25)
EU (EUVD) id: EUVD-2020-22299
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-03-25)
Weakness: CWE-284
Affected product: Qnap Helpdesk
Published: 2021-02-03
Last modified: 2026-06-17

Description

The vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.

Frequently asked questions

What is CVE-2020-2506?: The vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.
How severe is CVE-2020-2506?: CVE-2020-2506 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2020-2506 being actively exploited?: Yes. CVE-2020-2506 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-2506?: CVE-2020-2506 affects Qnap Helpdesk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2506?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-2506 have an EU (EUVD) identifier?: Yes. CVE-2020-2506 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-22299. It is also flagged as exploited in the EUVD (since 2022-03-25).
When was CVE-2020-2506 published?: CVE-2020-2506 was published on 2021-02-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:qnap:helpdesk:*:*:*:*:*:*:*:*

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