How severe is CVE-2017-5227?

CVE-2017-5227 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 high, integrity none, and availability none.

Is CVE-2017-5227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5227?

CVE-2017-5227 affects Qnap Qts. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-5227?

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-2017-5227 published?

CVE-2017-5227 was published on 2017-03-23 and last updated on 2026-06-17.

CVE-2017-5227

CVE-2017-5227 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Qnap Qts
Published: 2017-03-23
Last modified: 2026-06-17

Description

QNAP QTS before 4.2.4 Build 20170313 allows local users to obtain sensitive Domain Administrator password information by reading data in an XOR format within the /etc/config/uLinux.conf configuration file.

Frequently asked questions

What is CVE-2017-5227?: QNAP QTS before 4.2.4 Build 20170313 allows local users to obtain sensitive Domain Administrator password information by reading data in an XOR format within the /etc/config/uLinux.conf configuration file.
How severe is CVE-2017-5227?: CVE-2017-5227 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 high, integrity none, and availability none.
Is CVE-2017-5227 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5227?: CVE-2017-5227 affects Qnap Qts. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-5227?: 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-2017-5227 published?: CVE-2017-5227 was published on 2017-03-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*

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