CVE-2024-48868Network attack vector

Application-data modification via CRLF injection

Published Dec 6, 2024 · Updated Dec 6, 2024

CRLF injection in QNAP QTS 5.1.x and 5.2.x and QuTS hero h5.1.x and h5.2.x allows remote attackers to modify application data. QNAP has not published the affected component, input field, or operation that fails to neutralize carriage-return and line-feed characters. Exploitation requires no privileges but does require passive user interaction; the documented consequence is attacker-controlled modification of application data.

CVSS severity8.7
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CRLF injection in QNAP QTS 5.1.x and 5.2.x and QuTS hero h5.1.x and h5.2.x allows remote attackers to modify application data. QNAP has not published the affected component, input field, or operation that fails to neutralize carriage-return and line-feed characters. Exploitation requires no privileges but does require passive user interaction; the documented consequence is attacker-controlled modification of application data.

The record

CVE
CVE-2024-48868
Published
Dec 6, 2024
Updated
Dec 6, 2024
Vendor
Linn Products Limited
Product
QuTS hero
Classifications
CWE-93, CAPEC-15
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 6, 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=h5.1.x <h5.1.9.2954 build 20241120
  2. Affected versionversion=h5.2.x <h5.2.2.2952 build 20241116

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Linn Products Limited · QuTS heroversion=h5.1.x <h5.1.9.2954 build 20241120; version=h5.2.x <h5.2.2.2952 build 20241116
Linn Products Limited · QTSversion=5.1.x <5.1.9.2954 build 20241120; version=5.2.x <5.2.2.2950 build 20241114

Published CVSS scores

8.7QNAP Systems, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')
CAPEC-15Command Delimiters

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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