CVE-2023-39301: QNAP QTS

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A server-side request forgery (SSRF) vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to read application data via a network. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2514 build 20230906 and later QTS 5.1.1.2491 build 20230815 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h5.1.1.2488 build 20230812 and later QuTScloud c5.1.0.2498 and later

Affected products

• QNAP QTS: before 5.1.1.2491 (fixed in 5.1.1.2491); before 5.0.1.2514 (fixed in 5.0.1.2514)
• QNAP Quts Hero: before h5.1.1.2488 (fixed in h5.1.1.2488); before h5.0.1.2515 (fixed in h5.0.1.2515)
• QNAP Qutscloud: before c5.1.0.2498 (fixed in c5.1.0.2498)

Published 2023-11-03. Last modified 2026-06-17.