CVE-2022-27600Network attack vector

Remote service interruption via uncontrolled resource consumption

Published Dec 19, 2024 · Updated Dec 20, 2024

Uncontrolled resource consumption in QTS, QuTS hero, and QuTScloud allows remote attackers to interrupt affected NAS services. QNAP has not disclosed the affected component, resource, or network input whose processing consumes resources without an enforced limit. No authentication or user interaction is required, but attack complexity is high; the reported impact is limited to denial of service, with no reported data disclosure or modification.

CVSS severity6.8
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in QTS, QuTS hero, and QuTScloud allows remote attackers to interrupt affected NAS services. QNAP has not disclosed the affected component, resource, or network input whose processing consumes resources without an enforced limit. No authentication or user interaction is required, but attack complexity is high; the reported impact is limited to denial of service, with no reported data disclosure or modification.

The record

CVE
CVE-2022-27600
Published
Dec 19, 2024
Updated
Dec 20, 2024
Vendor
Linn Products Limited
Product
QuTS hero
Classifications
CWE-400, CAPEC-212, CAPEC-554, CAPEC-191, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=h4.5.x <h4.5.4.2374 build 20230417
  2. Affected versionversion=h5.0.x <h5.0.1.2277 build 20230112

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Linn Products Limited · QuTS heroversion=h4.5.x <h4.5.4.2374 build 20230417; version=h5.0.x <h5.0.1.2277 build 20230112
Linn Products Limited · QuTScloudversion=c5.x.x <c5.0.1.2374
Linn Products Limited · QTSversion=4.5.x <4.5.4.2280 build 20230112; version=5.0.x <5.0.1.2277

Published CVSS scores

6.8QNAP Systems, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CAPEC-212Functionality Misuse
CAPEC-554Functionality Bypass
CAPEC-191Read Sensitive Constants Within an Executable
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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