CVE-2024-50398Network attack vector

Secret-data disclosure and memory modification via format strings

Published Nov 22, 2024 · Updated Nov 22, 2024

Externally controlled format strings in QNAP QTS 5.2.x and QuTS hero h5.2.x allow remote authenticated users to read secret data or modify memory. QNAP has not disclosed the affected component or how attacker-controlled text reaches a formatting operation, so the exact input path is unknown. Exploitation requires remote administrator access; reported consequences are limited to secret-data exposure and memory modification.

CVSS severity2.1
Low
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Externally controlled format strings in QNAP QTS 5.2.x and QuTS hero h5.2.x allow remote authenticated users to read secret data or modify memory. QNAP has not disclosed the affected component or how attacker-controlled text reaches a formatting operation, so the exact input path is unknown. Exploitation requires remote administrator access; reported consequences are limited to secret-data exposure and memory modification.

The record

CVE
CVE-2024-50398
Published
Nov 22, 2024
Updated
Nov 22, 2024
Vendor
Linn Products Limited
Product
QuTS hero
Classifications
CWE-134, CAPEC-135
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 22, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=h5.2.x <h5.2.1.2929 build 20241025

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Linn Products Limited · QuTS heroversion=h5.2.x <h5.2.1.2929 build 20241025
Linn Products Limited · QTSversion=5.2.x <5.2.1.2930 build 20241025

Published CVSS scores

2.1QNAP Systems, Inc.CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
7.2OSVCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String
CAPEC-135Format String Injection

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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