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CVE Record

CVE-2023-50358: QTS, QuTS hero, QuTScloud

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.5.2645 build 20240116 and later QTS 4.5.4.2627 build 20231225 and later QTS 4.3.6.2665 build 20240131 and later QTS 4.3.4.2675 build 20240131 and later QTS 4.3.3.2644 build 20240131 and later QTS 4.2.6 build 20240131 and later QuTS hero h5.1.5.2647 build 20240118 and later QuTS hero h4.5.4.2626 build 20231225 and later QuTScloud c5.1.5.2651 and later

MediumCVSS 5.8Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2023-50358 is an OS command injection issue in QNAP QTS, QuTS hero, and QuTScloud. A successful attack could let an unauthenticated network-adjacent user run commands with limited confidentiality, integrity, and availability impact. QNAP has published fixed versions, so the business priority is identifying and upgrading exposed QNAP systems.

Executive priority

Prioritize remediation for QNAP systems that are business-critical, internet-adjacent, or accessible from shared networks. The severity is moderate, but command injection on storage infrastructure can become operationally important if exposure is broad.

Technical view

The issue is classified as CWE-78 command injection with CVSS 3.1 score 5.8. The vector indicates adjacent-network access, high attack complexity, no privileges, no user interaction, changed scope, and low CIA impact. Affected version families span multiple QTS, QuTS hero, and QuTScloud releases before QNAP's listed fixed builds.

Likely exposure

Exposure is most likely on QNAP NAS or cloud NAS deployments running affected QTS, QuTS hero, or QuTScloud branches below the fixed builds. Systems reachable from untrusted local or adjacent networks carry higher practical risk.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. Unit 42 is referenced as public research, but the provided bundle does not include exploit details. Treat this as a patchable command injection risk, not confirmed mass exploitation.

Researcher notes

Evidence supports CWE-78 command injection and fixed-version remediation. The bundle does not provide vulnerable parameter details, exploit prerequisites beyond CVSS, or proof of exploitation. Avoid assuming remote internet exploitability because the CVSS vector is adjacent network.

Mitigation direction

  • Upgrade affected QTS systems to QNAP's fixed builds or later.
  • Upgrade affected QuTS hero and QuTScloud systems to fixed builds or later.
  • Restrict QNAP management access to trusted networks until patched.
  • Review QNAP's advisory for product-specific update paths.

Validation and detection

  • Inventory all QNAP QTS, QuTS hero, and QuTScloud assets.
  • Compare installed versions and build numbers against QNAP's fixed-version list.
  • Confirm management interfaces are not reachable from untrusted network segments.
  • Review logs for unexpected administrative changes or command execution indicators.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-50358 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.8CVSS 3.1MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L1.63.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.8Medium
CVSS 3.1 vector shape for CVE-2023-50358Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
QNAP Systems Inc.QTS5.x, 4.5.x, 4.4.x, 4.3.6, 4.3.5, 4.3.4, 4.3.x, 4.2.xunaffected
QNAP Systems Inc.QuTS heroh5.x, h4.xunaffected
QNAP Systems Inc.QuTScloudc5.xunaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-78 · source CWE mapping

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.