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No exploitation reportedFix available

CVE-2024-21898

No exploitation reported by the sources we read.

  • Published2024-09-06
  • Fixed in5.1.6.2722_build_20240402
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later

Timeline

dates in UTC
  1. 2024-09-0617:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-21898?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-21898?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

CISA-ADP · NVD
Qnap qts
BranchAffectedFixed in
5.1≥ 5.1.0, < 5.1.6.2722_build_202404025.1.6.2722_build_20240402
5.1= 5.1.0.2348no fix published
5.1= 5.1.0.2399no fix published
5.1= 5.1.0.2418no fix published
5.1= 5.1.0.2444no fix published
5.1= 5.1.0.2466no fix published
5.1= 5.1.1.2491no fix published
5.1= 5.1.2.2533no fix published
5.1= 5.1.3.2578no fix published
5.1= 5.1.4.2596no fix published
5.1= 5.1.5.2645no fix published
5.1= 5.1.5.2679no fix published
Qnap quts hero
BranchAffectedFixed in
—≥ h5.1.0, < h5.1.6.2734_build_20240414h5.1.6.2734_build_20240414
—= h5.1.0.2409no fix published
—= h5.1.0.2424no fix published
—= h5.1.0.2453no fix published
—= h5.1.0.2466no fix published
—= h5.1.1.2488no fix published
—= h5.1.2.2534no fix published
—= h5.1.3.2578no fix published
—= h5.1.4.2596no fix published
—= h5.1.5.2647no fix published
—= h5.1.5.2680no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Qnap qts to 5.1.6.2722_build_20240402

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2024-09-06
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.18.8read 2026-10-23
  • NVDCVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score1.2 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2024-09-06
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2024-21898?

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later

Is CVE-2024-21898 actively exploited?

Active exploitation of CVE-2024-21898 has not been confirmed. Its EPSS score was 1.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-21898?

CVE-2024-21898 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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