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High 7.3Known exploited (CISA KEV)Published Feb 3, 2021

CVE-2020-2506improper access control vulnerability in Helpdesk

Updated under an hour ago ()

Does this affect you?

It affects QNAP Systems Inc. Helpdesk and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Mar 25, 2022; federal agencies had to remediate by Apr 15, 2022. Treat that date as your deadline.

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.

CVSS
7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE)
CWE-284
Known exploited
Added to CISA KEV Mar 25, 2022; federal remediation due Apr 15, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days)
1.98% (percentile 80)
Assigned by
qnap
NVD analysis
Analyzed
Record last updated
Oct 21, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
QNAP Systems Inc. Helpdesk
qnap_systems:helpdesk (from the name)
from unspecified before 3.0.3
CNA record
qnap helpdesk
qnap:helpdesk
before 3.0.3
NVD

References

  • x-refsource-misc, vendor-advisory
  • us-government-resource

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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