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Vulnerabilities

Vulnerability · CVE-2024-21902

An incorrect permission assignment for critical resource vulnerability has been reported to affect several QNAP operating system versions.

Published May 21, 2024 · catalog updated Jun 17, 2026 · An incorrect permission assignment

Last checked Nov 9, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2024-21902. EPSS is 0.35%. Act only if a listed version of An incorrect permission assignment is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (An incorrect permission assignment).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.35%
Remediation
Advisory link
Affected products
cpe qnap/qts

An incorrect permission assignment for critical resource vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to read or modify the resource via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and later

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe qnap/qts5.1.0.2348
  • cpe qnap/qts5.1.0.2399
  • cpe qnap/qts5.1.0.2418
  • cpe qnap/qts5.1.0.2444
  • cpe qnap/qts5.1.0.2466
  • cpe qnap/qts5.1.1.2491

How to fix CVE-2024-21902

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2024-21902. EPSS is 0.35%. Act only if a listed version of An incorrect permission assignment is installed.

Which versions are affected?

Compare what you have installed with 5.1.0.2348, 5.1.0.2399, 5.1.0.2418, 5.1.0.2444, 5.1.0.2466, 5.1.1.2491. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information; CWE-732: Incorrect Permission Assignment for Critical Resource. EPSS 0.35%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

QNAP QTS security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 21, 2024 · Monitored products — high

    Detected

    An incorrect permission assignment for critical resource vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to read or modify the resource via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and late

  2. Jun 17, 2026 · Monitored products — high

    Updated

    An incorrect permission assignment for critical resource vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to read or modify the resource via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and late

Sources

  • CVE.orgVulnerability recordCVE-2024-21902

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2024-21902

    An incorrect permission assignment for critical resource vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to read or modify the resource via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and late

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 9, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 7, 2026
  • Monitored products — highNov 6, 2026