CVE-2020-2509

CVE-2020-2509 is a remote command injection affecting QNAP QTS and QuTS hero. The vulnerability could allow an attacker to execute arbitrary commands within a vulnerable application. According to multiple sources, patches are available in the following releases: QTS 4.5.2.1566 Build 20210202 and ...

CVE-2023-50358

CVE-2023-50358 is an OS command-injection vulnerability affecting multiple QNAP OS lines, including QTS and QuTS variants. The advisory notes that, if exploited, an attacker could execute commands over the network. QNAP has fixed this vulnerability in specific releases: QTS 5.1.5.2645+ (build 202...

CVE-2024-27130

CVE-2024-27130 affects QNAP QTS and QuTS hero (NAS devices) with a stack-based buffer overflow in a network-facing path. The root cause, as reported in connected exploit handling, is unsafe use of strcpy in the share.cgi No_Support_ACL function, allowing remote code execution via crafted network ...

CVE-2023-23368

CVE-2023-23368 is an OS command injection affecting QNAP QTS/QuTS systems, allowing network-based command execution. Affected products and fixed versions are documented: QTS 5.0.1.2376 build 20230421 and later; QTS 4.5.4.2374 build 20230416 and later; QuTS hero h5.0.1.2376 build 20230421 and late...

CVE-2023-47218

Summary : CVE-2023-47218 is an OS command injection vulnerability affecting QNAP QTS, QuTS Hero, and QuTScloud. The flaw allows unauthenticated users on the local/network path to execute commands remotely via the affected OS components (notably the OS command injection vector reported for QTS/QuT...

CVE-2024-21899

CVE-2024-21899 describes an improper authentication vulnerability affecting several QNAP operating system lines (QTS and QuTS variants). The connected sources specify impact on QTS 5.1.3.2578 build 20231110 and later, QTS 4.5.4.2627 build 20231225 and later, QuTS hero h5.1.3.2578 build 20231110 a...

CVE-2022-27596

CVE-2022-27596 affects QNAP QTS and QuTS hero (QuTS hero h5.0.1.2248 build 20221215+; QTS 5.0.1.2234 build 20221201+) and is described as a remotely exploitable issue that enables arbitrary code execution, with sources classifying the flaw as an SQL injection vulnerability. The NVD and vendor adv...

CVE-2021-38693

CVE-2021-38693 is a path-traversal vulnerability affecting QNAP devices running QuTScloud, QuTS hero, QTS, and QVR Pro Appliance. The issue is triggered via path traversal in thttpd, enabling read access to potentially sensitive files. Public references in the provided documents confirm remediati...

CVE-2020-25847

CVE-2020-25847 is a remote command injection vulnerability affecting QNAP QTS and QuTS hero. The flaw allows attackers to execute arbitrary commands in a compromised application. NVD/OSS records assign CVSSv3.1 base score 8.8 (Network, Low attack complexity, Privileges required: Low, User interac...

CVE-2024-21898

The CVE-2024-21898 issue is an OS command injection in QNAP QTS and QuTS hero that could allow authenticated network access to execute commands. Affected: QTS 5.1.6.2722 build 20240402 and later; QuTS hero h5.1.6.2734 build 20240414 and later. Root cause details are not explicitly specified beyon...

CVE-2021-44051

CVE-2021-44051 affects QNAP NAS running QTS, QuTS hero, and QuTScloud (remote command execution via a command-injection flaw). The NVD entry lists CVSS v3.1 base score 8.8 (high) with network access, low attack complexity, and no user interaction required; impact to confidentiality, integrity, an...

CVE-2023-23355

CVE-2023-23355 is an OS command injection affecting QNAP QTS/QuTS hero/QuTScloud (QVR/QVP-related appliances). The vulnerability could allow remote authenticated administrators to execute commands via unspecified vectors; QES is not affected. Affected products and fixed versions are explicitly li...

CVE-2026-41539

CVE-2026-41539 is a cross-site scripting (XSS) vulnerability affecting several QNAP operating system versions. The issue impacts QTS 5.2.9.3492+ and QuTS hero releases: h5.2.9.3499+, h5.3.4.3500+, and h6.0.0.3500+, all built around 2026-05-07 to 2026-05-20. Root cause and technical details are no...

CVE-2021-44054

CVE-2021-44054: Open redirect in QNAP devices running QuTScloud, QuTS hero, and QTS. Affects QuTScloud, QuTS hero (h5.0.0.1949+; build 20220215+) and (h4.5.4.1951; build 20220218+), as well as QTS (5.0.0.1986; build 20220324+) and (4.5.4.1991; build 20220329+). Root cause described as an open red...

CVE-2024-21903

CVE-2024-21903 is an OS command injection vulnerability affecting QNAP QTS and QuTS hero. It allows authenticated administrators to execute commands over the network. The root cause details are not provided in the documents beyond the command-injection nature. Benign exploitation details are not ...

CVE-2024-21902

CVE-2024-21902 affects QNAP QTS and QuTS hero systems, stemming from an incorrect permission assignment for a critical resource. The vulnerability could allow authenticated users to read or modify the resource over a network. Public details in the provided documents confirm affected products are ...

CVE-2021-44053

CVE-2021-44053 is a cross-site scripting (XSS) vulnerability affecting QNAP devices running QTS, QuTS hero, and QuTScloud. The issue allows remote attackers to inject malicious code. Fixed in QTS 4.5.4.1991 build 20220329 and later, QTS 5.0.0.1986 build 20220324 and later, QuTS hero h5.0.0.1986 b...

CVE-2024-53691

Summary : CVE-2024-53691 affects QNAP QTS and QuTS hero. A symlink/link-following vulnerability in ZIP extraction allows an attacker with basic user access to traverse the file system to unintended locations due to improper link resolution before file access. Impact (as described) : potential fil...

CVE-2024-50393

CVE-2024-50393 is a command-injection vulnerability reported to affect QNAP QTS and QuTS hero OS families. The issue may allow remote attackers to execute arbitrary commands via network access, with a low attack complexity and no privileges required, potentially impacting confidentiality, integri...

CVE-2026-24719

CVE-2026-24719 affects QNAP operating systems QTS and QuTS hero. Description: a command-injection vulnerability that can be exploited by an attacker who has obtained an administrator account to execute arbitrary commands. Affected versions include QTS 5.2.9.3492 build 20260507 and later, and QuTS...

CVE-2022-27600

CVE-2022-27600 is an uncontrolled resource consumption vulnerability impacting several QNAP OS lines, notably QTS, QuTS hero, and QuTScloud. According to connected sources, remote attackers could cause a denial-of-service (DoS). Affected products/versions include QTS 5.0.1.2277 and later, QTS 4.5...

CVE-2023-51366

CVE-2023-51366 concerns a path traversal vulnerability in QNAP’s QTS and QuTS hero OSes. The issue allows unauthorized access to read contents of files over the network on affected builds. Public material in the connected docs confirms the vulnerability impacts QTS and QuTS hero, with the underly...

CVE-2021-28816

CVE-2021-28816 is a stack-based buffer overflow affecting QNAP QTS, QuTScloud, and QuTS hero. The vulnerability could allow arbitrary code execution if exploited. Affected QTS/QuTS versions fixed include QTS 4.5.4.1715 build 20210630 and later, QTS 5.0.0.1716 build 20210701 and later, QTS 4.3.3.1...

CVE-2024-21900

The CVE-2024-21900 entry describes an injection vulnerability affecting several QNAP operating system versions. Authenticated users could potentially execute commands over the network due to the underlying injection flaw. Affected product families include QTS, QuTS hero, and QuTScloud. Remediatio...

CVE-2023-34971

CVE-2023-34971 affects QNAP QTS and QuTS hero; vulnerability is an inadequate encryption strength issue that could allow local network clients to decrypt data by brute-forcing encryption via unspecified vectors. Affected products/versions include QTS 5.0.1.2425+ (build 20230609), QTS 5.1.0.2444+ ...

CVE-2024-48866

CVE-2024-48866 concerns an improper handling of URL encoding (Hex Encoding) affecting QNAP QTS and QuTS hero. Affected products include QTS 5.1.9.2954 build 20241120 and later, QTS 5.2.2.2950 build 20241114 and later, QuTS hero h5.1.9.2954 build 20241120 and later, and QuTS hero h5.2.2.2952 build...

CVE-2021-28806

CVE-2021-28806 is a DOM-based XSS affecting QNAP NAS UI components in QTS and QuTS hero. Affected: QTS before 4.5.3.1652 Build 20210428; QuTS hero before h4.5.2.1638 Build 20210414; QuTScloud before c4.5.5.1656 Build 20210503. Not affecting QTS 4.3.6/4.3.3. Root cause: DOM-based XSS in web interf...

CVE-2020-2495

CVE-2020-2495 is a cross-site scripting (XSS) vulnerability in QNAP QTS/QuTS Hero File Station that could allow remote attackers to inject malicious code. The issue is fixed in multiple newer builds: QuTS hero h4.5.1.1472+ (20201031+), QTS 4.5.1.1456+, QTS 4.4.3.1354+, QTS 4.3.6.1333+, QTS 4.3.4....

CVE-2024-32766

CVE-2024-32766 is an OS command injection affecting QNAP QTS (5.1.3.2578+), QTS (4.5.4.2627+), QuTS hero (h5.1.3.2578+, h4.5.4.2626+), and QuTScloud (c5.1.5.2651+). Root cause: insufficient input sanitization allowing network-executed commands. Affected versions are listed; fixes are provided in ...

CVE-2025-62847

CVE-2025-62847 is an actual, documented vulnerability affecting QNAP QTS and QuTS hero. It is described as an improper neutralization of argument delimiters in a command, enabling an attacker to alter execution logic on affected systems. Fixed versions are QTS 5.2.7.3297 build 20251024 and later,...

CVE-2021-44052

CVE-2021-44052 affects QNAP devices running QuTScloud, QuTS hero, and QTS. It is an improper link resolution before file access ("link following") vulnerability that could allow remote attackers to traverse the file system and read or overwrite files in unintended locations. Affected components a...

CVE-2018-19942

CVE-2018-19942 is a cross-site scripting (XSS) vulnerability affecting earlier versions of QNAP File Station. The included sources indicate the flaw was fixed in multiple product lines and versions, including QTS 4.5.2.1566 and later, QTS 4.5.1.1456 and later, QTS 4.3.6.1446 and later, QTS 4.3.4....

CVE-2024-27129

CVE-2024-27129 is a buffer copy vulnerability affecting QNAP QTS (5.1.x) and QuTS hero (h5.1.x). The issue allows authenticated remote code execution via the network due to unchecked input size; exploitation requires valid credentials. Fixed in QTS 5.1.7.2770 build 20240520 and later and QuTS her...

CVE-2024-27128

CVE-2024-27128 affects QNAP QTS and QuTS hero. A buffer copy without input size checking could allow authenticated network-based code execution. Affected versions are QTS 5.1.x and QuTS hero h5.1.x, with fixes in QTS 5.1.7.2770 build 20240520 and later and QuTS hero h5.1.7.2770 build 20240520 and...

CVE-2024-32763

CVE-2024-32763 affects QNAP QTS and QuTS hero. A buffer copy without input size checking can let an authenticated user execute code over the network. Affected products include QTS and QuTS hero, with fixes released in QTS 5.1.8.2823 build 20240712 and later, and QuTS hero h5.1.8.2823 build 202407...

CVE-2024-48865

CVE-2024-48865 concerns an improper certificate validation vulnerability affecting QNAP QTS and QuTS hero. Multiple sources confirm impact across QTS 5.1.9.2954+ (build 20241120+), QTS 5.2.2.2950+ (build 20241114+), QuTS hero h5.1.9.2954+ (build 20241120+), and QuTS hero h5.2.2.2952+ (build 20241...

CVE-2023-50364

CVE-2023-50364 : A buffer copy without input size validation affects QNAP QTS and QuTS hero (networked, authenticated access). The issue could allow code execution by a logged-in user over the network. Fixed versions are QTS 5.1.6.2722 build 20240402 and later, and QuTS hero h5.1.6.2734 build 202...

CVE-2023-45039

CVE-2023-45039 is a buffer copy vulnerability reported in QNAP QTS/QuTS hero. Affected software: QTS and QuTS hero (various versions prior to fixed build). Root cause: improper input size handling leading to a potential code execution path. Impact as described: if exploited, authenticated adminis...

CVE-2024-48859

Summary: CVE-2024-48859 is an improper authentication vulnerability affecting QNAP QTS and QuTS hero operating systems. The issue could allow remote attackers to compromise system security via network access. Affected versions (patched): QTS 5.1.9.2954 build 20241120 and later; QTS 5.2.2.2950 bui...

CVE-2025-22481

CVE-2025-22481 is a remote command injection vulnerability affecting QNAP QTS and QuTS Hero. The issue is identified as improper neutralization of special elements used in a command, enabling remote attackers with user access to execute arbitrary commands. Affected products include QTS and QuTS H...

CVE-2020-2496

CVE-2020-2496 is a cross-site scripting vulnerability affecting QNAP QTS/QuTS Hero. Exploitation could allow remote attackers to inject malicious code via File Station. QANP subsequently fixed the issue in multiple releases: QuTS hero h4.5.1.1472 build 20201031 and later; QTS 4.5.1.1456 build 202...

CVE-2021-28798

CVE-2021-28798 is a relative path traversal vulnerability affecting QNAP NAS running QTS and QuTS hero. The issue targets filesystem paths to modify files and impact system integrity. Fixed in multiple QTS/QuTS versions: QTS 4.5.2.1630 Build 20210406 and later; QTS 4.3.6.1663 Build 20210504 and l...

CVE-2023-23367

CVE-2023-23367 affects multiple QNAP platforms (QTS, QuTS hero, QuTScloud) with an OS command injection vulnerability that could allow authenticated administrators to execute commands over the network. Affected versions: QTS 5.0.1.2376 build 20230421 and later; QuTS hero h5.0.1.2376 build 2023042...

CVE-2024-21897

CVE-2024-21897 is an XSS vulnerability affecting QNAP QTS and QuTS hero. It could allow authenticated users to inject malicious code over the network. Remediated in QTS 5.1.6.2722 build 20240402 and later and QuTS hero h5.1.6.2734 build 20240414 and later.

CVE-2025-62848

CVE-2025-62848 is a NULL pointer dereference vulnerability reported affecting multiple QNAP platforms (QTS and QuTS hero). The issue allows remote attackers to trigger a denial-of-service via network access, as described in vendor notes. Affected versions have been patched in QTS 5.2.7.3297 build...

CVE-2024-48867

CVE-2024-48867 concerns CRLF injection in QNAP QTS and QuTS Hero. Affected products/versions include QTS 5.1.9.2954 (build 20241120) and later, QTS 5.2.2.2950 (build 20241114) and later, QuTS hero h5.1.9.2954 (build 20241120) and later, and QuTS hero h5.2.2.2952 (build 20241116) and later. The CW...

CVE-2024-48868

CVE-2024-48868 is a CRLF injection vulnerability reported to affect QNAP QTS and QuTS hero. The flaw permits remote modification of application data when exploited. Affected versions have been fixed: QTS 5.1.9.2954 build 20241120 and later; QTS 5.2.2.2950 build 20241114 and later; QuTS hero h5.1....

CVE-2024-21906

CVE-2024-21906 affects QNAP QTS and QuTS hero. An OS command injection could be exploited by authenticated administrators over the network to execute commands. Reported impact is low confidentiality/integrity/availability (C/L/I/A = Low) with high privileges required and no user interaction. Affe...

CVE-2024-56805

Summary (CVE-2024-56805): A buffer overflow occurs in QNAP QTS and QuTS hero related to a buffer copy without proper input size checking. This can allow remote attackers who have limited user access to modify memory or crash processes. Affected products/components: QTS and QuTS hero. Root cause: ...

CVE-2020-2497

The CVE-2020-2497 entry describes a cross-site scripting (XSS) vulnerability in QTS/QuTS Hero where remote attackers could inject malicious code into System Connection Logs. Affected products include QTS and QuTS Hero with multiple fixed versions listed: QuTS hero h4.5.1.1472 build 20201031 and l...