CVE-2025-52864: QTS, QuTS hero
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.
We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.0.3192 build 20250716 and later
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2025-52864?
CVE-2025-52864 is considered a high-severity vulnerability due to the potential for remote exploitation leading to memory modifications or system crashes.
How do I fix CVE-2025-52864?
To fix CVE-2025-52864, upgrade to the latest QNAP QTS or QuTS hero version that addresses this vulnerability.
Which QNAP versions are affected by CVE-2025-52864?
CVE-2025-52864 affects QNAP QTS versions up to 5.2.7.3256 and QuTS hero versions up to 5.2.7.3256 and 5.3.0.3192.
What can an attacker do if they exploit CVE-2025-52864?
If exploited, CVE-2025-52864 allows an attacker with a valid user account to modify memory or crash processes on the affected QNAP systems.
Is there a workaround for CVE-2025-52864?
There are no recommended workarounds for CVE-2025-52864; the only effective solution is to apply the appropriate software update.