CVE-2018-19941: QNAP QTS

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)

Affected products

• QNAP QTS: before 4.5.1.1456 (fixed in 4.5.1.1456)
• QNAP Quts Hero: before h4.5.1.1472 (fixed in h4.5.1.1472)
• QNAP Qutscloud: before c4.5.2.1379 (fixed in c4.5.2.1379)

Published 2020-12-31. Last modified 2026-06-17.