CVE-2017-7639
CVE-2017-7639 is a medium-severity vulnerability in Qnap Nas Proxy Server with a CVSS 3.x base score of 5.3. 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 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Qnap Nas Proxy Server
- Published:
- Last modified:
Description
QNAP NAS application Proxy Server through version 1.2.0 does not authenticate requests properly. Successful exploitation can lead to change of the settings of Proxy Server.
Frequently asked questions
- What is CVE-2017-7639?
- QNAP NAS application Proxy Server through version 1.2.0 does not authenticate requests properly. Successful exploitation can lead to change of the settings of Proxy Server.
- How severe is CVE-2017-7639?
- CVE-2017-7639 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2017-7639 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-7639?
- CVE-2017-7639 affects Qnap Nas Proxy Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-7639?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2017-7639 published?
- CVE-2017-7639 was published on 2018-06-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:qnap:nas_proxy_server:*:*:*:*:*:*:*:*
More vulnerabilities in Qnap Nas Proxy Server
- CVE-2017-7637 — Critical (CVSS 9.8): QNAP NAS application Proxy Server through version 1.2.0 allows remote attackers to run arbitrary OS commands against…
- CVE-2017-7635 — High (CVSS 8.8): QNAP NAS application Proxy Server through version 1.2.0 does not utilize CSRF protections.
- CVE-2021-34359 — Medium (CVSS 6.9): A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running Proxy Server. If exploited,…
- CVE-2017-7636 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in QNAP NAS application Proxy Server through version 1.2.0 allows remote…
- CVE-2021-34360 — Medium (CVSS 5.3): A cross-site request forgery (CSRF) vulnerability has been reported to affect QNAP device running Proxy Server. If…
- CVE-2021-34361 — Medium (CVSS 5.3): A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running Proxy Server. If exploited,…
All CVEs affecting Qnap Nas Proxy Server →
Other CWE-287 (Improper Authentication) vulnerabilities
- CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
- 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 →