How severe is CVE-2018-14748?

CVE-2018-14748 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-14748 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14748?

CVE-2018-14748 primarily affects Qnap Qts. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-14748?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-14748 published?

CVE-2018-14748 was published on 2018-11-28 and last updated on 2026-06-17.

CVE-2018-14748

CVE-2018-14748 is a high-severity vulnerability in Qnap Qts with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Qnap Qts
Published: 2018-11-28
Last modified: 2026-06-17

Description

Improper Authorization vulnerability in QTS 4.3.5 build 20181013, QTS 4.3.4 build 20181008, QTS 4.3.3 build 20180829, QTS 4.2.6 build 20180829 and earlier versions could allow remote attackers to power off the NAS.

Frequently asked questions

What is CVE-2018-14748?: Improper Authorization vulnerability in QTS 4.3.5 build 20181013, QTS 4.3.4 build 20181008, QTS 4.3.3 build 20180829, QTS 4.2.6 build 20180829 and earlier versions could allow remote attackers to power off the NAS.
How severe is CVE-2018-14748?: CVE-2018-14748 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-14748 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14748?: CVE-2018-14748 primarily affects Qnap Qts. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-14748?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-14748 published?: CVE-2018-14748 was published on 2018-11-28 and last updated on 2026-06-17.

References

https://www.qnap.com/zh-tw/security-advisory/nas-201811-22

Affected products (4)

cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.5:*:*:*:*:*:*:*

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Other CWE-863 (Incorrect Authorization) vulnerabilities

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CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
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CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
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