A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained user access to modify memory or crash processes.
We have already fixed the vulnerability in the following versions:
QTS 5.2.4.3079 build 20250321 and later
QuTS hero h5.2.4.3079 build 20250321 and later
CVE ID: CVE-2024-56805
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.3
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Vendor: QNAP Systems Inc.
Product: QTS, QuTS hero
EPSS Score: 0.1% (probability of being exploited)
EPSS Percentile: 29.32% (scored less or equal to compared to others)
EPSS Date: 2025-06-27 (when was this score calculated)