CVE-2025-66274

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service DoS attack. We have already fixed the vulnerability in the...

CVE-2025-66277

A link following vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to traverse the file system to unintended locations. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3350 build...

PT-2026-7568

Name of the Vulnerable Software and Affected Versions QNAP versions prior to QuTS hero h5.3.2.3354 build 20251225 Description A flaw exists where a remote attacker, having obtained administrator privileges, could trigger a denial-of-service DoS condition through a NULL pointer dereference...

PT-2026-7534

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service DoS attack. We have already fixed the vulnerability in the...

PT-2026-7563

Name of the Vulnerable Software and Affected Versions QNAP QTS versions prior to 5.2.8.3332 build 20251128 QNAP QuTS hero versions prior to h5.2.8.3321 build 20251117 Description A use of uninitialized variable issue exists in QNAP operating systems. A remote attacker gaining administrator access...

Qnap QTS and QuTS hero Allocation of Resources Without Limits or Throttling (CVE-2025-57705)

An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessin...

Qnap QTS and QuTS hero NULL Pointer Dereference (CVE-2025-53589)

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service DoS attack. We have already fixed the vulnerability in the...

Qnap QTS and QuTS hero Buffer Copy without Checking Size of Input (CVE-2025-52864)

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...

Qnap QTS and QuTS hero Out-of-bounds Read (CVE-2025-54165)

An out-of-bounds read vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following versions: QTS...

Qnap QTS and QuTS hero Buffer Copy without Checking Size of Input (CVE-2025-52872)

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...

Qnap QTS and QuTS hero NULL Pointer Dereference (CVE-2025-52431)

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service DoS attack. We have already fixed the vulnerability in the...

Qnap QTS and QuTS hero Stack-based Buffer Overflow (CVE-2025-53593)

A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions:...

Qnap QTS and QuTS hero Buffer Copy without Checking Size of Input (CVE-2025-48721)

A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Q...

Qnap QTS and QuTS hero Improper Limitation of a Pathname to a Restricted Directory (CVE-2025-59381)

A path traversal vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the...

Qnap QTS and QuTS hero NULL Pointer Dereference (CVE-2025-44013)

A NULL pointer dereference 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 launch a denial-of-service DoS attack. We have already fixed the vulnerability in the following...

Qnap QTS and QuTS hero Exposure of Sensitive System Information to an Unauthorized Control Sphere (CVE-2025-9110)

An exposure of sensitive system information to an unauthorized control sphere vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to read application data. We have already fixed the vulnerability in the followin...

Qnap QTS and QuTS hero NULL Pointer Dereference (CVE-2025-52430)

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service DoS attack. We have already fixed the vulnerability in the...

Qnap QTS and QuTS hero NULL Pointer Dereference (CVE-2025-53596)

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service DoS attack. We have already fixed the vulnerability in the...

Qnap QTS and QuTS hero Improper Neutralization of Argument Delimiters in a Command (CVE-2025-62847)

An improper neutralization of argument delimiters in a command vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to alter execution logic. We have already fixed the vulnerability in the following versions: QTS...

Qnap QTS and QuTS hero Improper Neutralization of Special Elements used in an OS Command (CVE-2023-34980)

An OS command injection vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute commands via a network. We have already fixed the vulnerability in the following versions: QTS 4.5.4.2627...