Qnap QTS and QuTS hero OS Command Injection (CVE-2026-22893)

A command injection 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 execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS...

Qnap QuTS hero NULL Pointer Dereference (CVE-2025-62850)

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 Cross-site Scripting (CVE-2026-41539)

A cross-site scripting XSS vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fixed the vulnerability in the following versions: QTS...

CVE-2026-22893

A command injection 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 execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS...

CVE-2025-62858

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:...

CVE-2026-24719 QTS, QuTS hero

A command injection 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 execute arbitrary commands. We have already fixed the vulnerability in the following versions: QTS...

CVE-2025-66280 QTS, QuTS hero

An integer overflow or wraparound 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 compromise the security of the system. We have already fixed the vulnerability in the...

PT-2026-48366

Name of the Vulnerable Software and Affected Versions QTS versions prior to 5.2.9.3492 build 20260507 QuTS hero versions prior to h5.2.9.3499 build 20260514 QuTS hero versions prior to h5.3.4.3500 build 20260520 QuTS hero versions prior to h6.0.0.3459 build 20260409 Description A NULL pointer...

PT-2026-47687

Name of the Vulnerable Software and Affected Versions QTS versions prior to 5.2.9.3492 build 20260507 QuTS hero versions prior to h5.2.9.3499 build 20260514 QuTS hero versions prior to h5.3.4.3500 build 20260520 QuTS hero versions prior to h6.0.0.3500 build 20260520 Description A cross-site...

CVE-2024-14026 QTS, QuTS hero

A command injection vulnerability has been reported to affect several QNAP operating system versions. If an attacker gains local network access who have also gained a user account, they can then exploit the vulnerability to execute arbitrary commands. We have already fixed the vulnerability in th...

Qnap QTS and QuTS Use of Uninitialized Variable (CVE-2025-58466)

A use of uninitialized variable 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 denial of service conditions, or modify control flow in unexpected ways. We have alread...

Qnap QTS and QuTS Improper Link Resolution Before File Access (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...

Qnap QTS and QuTS NULL Pointer Dereference (CVE-2025-47205)

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...

ALPINE-CVE-2026-21863

Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious actor with access to the Valkey clusterbus port can send an invalid packet that may cause an out bound read, which might result in the system crashing. The Valkey clusterbus packet processin...

CVE-2025-66277

CVE-2025-66277 is a high-severity, network-exploitable vulnerability in several QNAP OS platforms where a crafted link can enable filesystem traversal to unintended locations. The CVE lists a root cause related to path traversal within a link-following component and indicates a modified impact on...

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 Buffer Copy without Checking Size of Input (CVE-2025-52863)

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 Use of Externally-Controlled Format String (CVE-2025-53591)

A use of externally-controlled format string 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 or modify memory. We have already fixed the vulnerabili...

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...

CVE-2025-59380

CVE-2025-59380 describes a path traversal vulnerability in QNAP QTS and QuTS hero. A remote attacker with administrator privileges could read unexpected files or system data. Concrete details from connected sources: affected products are QTS 5.2.8.3332 build 20251128 and later, and QuTS hero h5.2...