How severe is CVE-2017-7638?

CVE-2017-7638 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-7638 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7638?

CVE-2017-7638 affects Qnap Media Streaming Add-on. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-7638?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-7638 published?

CVE-2017-7638 was published on 2018-03-08 and last updated on 2026-06-17.

CVE-2017-7638

CVE-2017-7638 is a medium-severity vulnerability in Qnap Media Streaming Add-on with a CVSS 3.x base score of 6.5. 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.4
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Qnap Media Streaming Add-on
Published: 2018-03-08
Last modified: 2026-06-17

Description

QNAP NAS application Media Streaming add-on version 421.1.0.2, 430.1.2.0, and earlier does not authenticate requests properly. Successful exploitation could lead to change of the Media Streaming settings, and leakage of sensitive information of the QNAP NAS.

Frequently asked questions

What is CVE-2017-7638?: QNAP NAS application Media Streaming add-on version 421.1.0.2, 430.1.2.0, and earlier does not authenticate requests properly. Successful exploitation could lead to change of the Media Streaming settings, and leakage of sensitive information of the QNAP NAS.
How severe is CVE-2017-7638?: CVE-2017-7638 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-7638 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7638?: CVE-2017-7638 affects Qnap Media Streaming Add-on. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-7638?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-7638 published?: CVE-2017-7638 was published on 2018-03-08 and last updated on 2026-06-17.

References

https://www.qnap.com/zh-tw/security-advisory/nas-201803-08

Affected products (1)

cpe:2.3:a:qnap:media_streaming_add-on:*:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →