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Vulnerability Details :

CVE-2026-26240

Summary
Assigner-qnap
Assigner Org ID-2fd009eb-170a-4625-932b-17a53af1051f
Published At-10 Jun, 2026 | 05:03
Updated At-10 Jun, 2026 | 15:04
Rejected At-
Credits

File Station 5

A buffer overflow vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:qnap
Assigner Org ID:2fd009eb-170a-4625-932b-17a53af1051f
Published At:10 Jun, 2026 | 05:03
Updated At:10 Jun, 2026 | 15:04
Rejected At:
â–¼CVE Numbering Authority (CNA)
File Station 5

A buffer overflow vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later

Affected Products
Vendor
QNAP Systems, Inc.QNAP Systems Inc.
Product
File Station 5
Default Status
unaffected
Versions
Affected
  • From 5.5.0 before 5.5.6.5243 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-121CWE-121
Type: CWE
CWE ID: CWE-121
Description: CWE-121
Metrics
VersionBase scoreBase severityVector
4.05.3MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-47CAPEC-47
CAPEC ID: CAPEC-47
Description: CAPEC-47
Solutions

We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later

Configurations

Workarounds

Exploits

Credits

finder
Moritz Abrell, SySS GmbH
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.qnap.com/en/security-advisory/qsa-26-32
N/A
Hyperlink: https://www.qnap.com/en/security-advisory/qsa-26-32
Resource: N/A
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@qnapsecurity.com.tw
Published At:10 Jun, 2026 | 05:16
Updated At:12 Jun, 2026 | 12:52

A buffer overflow vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.05.3MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CPE Matches

QNAP Systems, Inc.
qnap
>>file_station>>Versions from 5.5.6.4691(inclusive) to 5.5.6.5243(exclusive)
cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-121Primarysecurity@qnapsecurity.com.tw
CWE ID: CWE-121
Type: Primary
Source: security@qnapsecurity.com.tw
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://www.qnap.com/en/security-advisory/qsa-26-32security@qnapsecurity.com.tw
Broken Link
Hyperlink: https://www.qnap.com/en/security-advisory/qsa-26-32
Source: security@qnapsecurity.com.tw
Resource:
Broken Link

Change History

0
Information is not available yet

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CVE-2026-26241
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EPSS-0.14% / 33.12%
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Updated-12 Jun, 2026 | 12:51
Rejected-Not Available
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DeadBolt Ransomware

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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Updated-23 Sep, 2025 | 13:43
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Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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EPSS-0.03% / 10.54%
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Rejected-Not Available
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KEV Added-Not Available
KEV Action Due Date-Not Available
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CWE ID-CWE-121
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Matching Score-6
Assigner-QNAP Systems, Inc.
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Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-0.6||LOW
EPSS-0.14% / 34.42%
||
7 Day CHG~0.00%
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Updated-11 Feb, 2026 | 21:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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EPSS-0.12% / 31.08%
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7 Day CHG~0.00%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Vendor-QNAP Systems, Inc.
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CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2025-30265
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-2.3||LOW
EPSS-0.19% / 40.44%
||
7 Day CHG~0.00%
Published-29 Aug, 2025 | 17:15
Updated-22 Sep, 2025 | 17:25
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTS
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2021-28797
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-9.8||CRITICAL
EPSS-1.30% / 80.12%
||
7 Day CHG~0.00%
Published-14 Apr, 2021 | 08:50
Updated-17 Sep, 2024 | 03:28
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Stack Buffer Overflow in Surveillance Station

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Action-Not Available
Vendor-QNAP Systems, Inc.
Product-surveillance_stationnasSurveillance Station
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-41278
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.06% / 19.34%
||
7 Day CHG~0.00%
Published-02 Feb, 2024 | 16:04
Updated-02 Aug, 2024 | 18:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.2.2533 build 20230926 and later QuTS hero h5.1.2.2534 build 20230927 and later QuTScloud c5.1.5.2651 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQuTScloudQuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2023-41277
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.05% / 15.20%
||
7 Day CHG~0.00%
Published-02 Feb, 2024 | 16:04
Updated-17 Jun, 2025 | 21:29
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

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Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQTSQuTScloudQuTS hero
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2023-41280
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.06% / 19.34%
||
7 Day CHG~0.00%
Published-02 Feb, 2024 | 16:04
Updated-02 Aug, 2024 | 18:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.2.2533 build 20230926 and later QuTS hero h5.1.2.2534 build 20230927 and later QuTScloud c5.1.5.2651 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQuTScloudQuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2023-41279
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.06% / 19.34%
||
7 Day CHG~0.00%
Published-02 Feb, 2024 | 16:04
Updated-02 Aug, 2024 | 18:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.2.2533 build 20230926 and later QuTS hero h5.1.2.2534 build 20230927 and later QuTScloud c5.1.5.2651 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQuTScloudQuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-62852
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-1.2||LOW
EPSS-0.12% / 30.83%
||
7 Day CHG~0.00%
Published-02 Jan, 2026 | 15:19
Updated-06 Jan, 2026 | 13:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

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: QTS 5.2.8.3332 build 20251128 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-qtsquts_heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-32972
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-3.8||LOW
EPSS-0.08% / 23.84%
||
7 Day CHG~0.00%
Published-06 Oct, 2023 | 16:36
Updated-19 Sep, 2024 | 14:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2425 build 20230609 and later QTS 5.1.0.2444 build 20230629 and later QTS 4.5.4.2467 build 20230718 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h5.1.0.2424 build 20230609 and later QuTS hero h4.5.4.2476 build 20230728 and later QuTScloud c5.1.0.2498 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQuTScloudQuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-32971
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-3.8||LOW
EPSS-0.08% / 23.84%
||
7 Day CHG~0.00%
Published-06 Oct, 2023 | 16:36
Updated-19 Sep, 2024 | 14:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2425 build 20230609 and later QTS 5.1.0.2444 build 20230629 and later QTS 4.5.4.2467 build 20230718 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h5.1.0.2424 build 20230609 and later QuTS hero h4.5.4.2476 build 20230728 and later QuTScloud c5.1.0.2498 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQuTScloudQuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-32973
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-3.8||LOW
EPSS-0.08% / 23.84%
||
7 Day CHG~0.00%
Published-13 Oct, 2023 | 19:16
Updated-16 Sep, 2024 | 20:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2425 build 20230609 and later QTS 5.1.0.2444 build 20230629 and later QTS 4.5.4.2467 build 20230718 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h5.1.0.2424 build 20230609 and later QuTS hero h4.5.4.2476 build 20230728 and later QuTScloud c5.1.0.2498 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQuTScloudQuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-787
Out-of-bounds Write
CVE-2024-27129
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-6.4||MEDIUM
EPSS-0.32% / 55.19%
||
7 Day CHG~0.00%
Published-21 May, 2024 | 16:08
Updated-11 Sep, 2024 | 13:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute code via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTSquts_heroqts
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-66280
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.1||MEDIUM
EPSS-0.14% / 33.15%
||
7 Day CHG~0.00%
Published-10 Jun, 2026 | 03:05
Updated-10 Jun, 2026 | 19:43
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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 following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-QuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2020-2501
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-9.8||CRITICAL
EPSS-3.75% / 88.29%
||
7 Day CHG~0.00%
Published-17 Feb, 2021 | 03:25
Updated-16 Sep, 2024 | 19:47
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Stack Buffer Overflow in Surveillance Station

A stack-based buffer overflow vulnerability has been reported to affect QNAP NAS devices running Surveillance Station. If exploited, this vulnerability allows attackers to execute arbitrary code. QNAP have already fixed this vulnerability in the following versions: Surveillance Station 5.1.5.4.3 (and later) for ARM CPU NAS (64bit OS) and x86 CPU NAS (64bit OS) Surveillance Station 5.1.5.3.3 (and later) for ARM CPU NAS (32bit OS) and x86 CPU NAS (32bit OS)

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-surveillance_stationnasSurveillance Station
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-50361
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5||MEDIUM
EPSS-0.35% / 57.73%
||
7 Day CHG+0.08%
Published-26 Apr, 2024 | 15:01
Updated-11 Sep, 2024 | 13:25
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTSquts_heroqts
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2023-51367
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.4||MEDIUM
EPSS-0.23% / 45.94%
||
7 Day CHG~0.00%
Published-06 Sep, 2024 | 16:26
Updated-11 Sep, 2024 | 13:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTS
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-53593
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-1.2||LOW
EPSS-0.11% / 28.38%
||
7 Day CHG~0.00%
Published-02 Jan, 2026 | 14:56
Updated-05 Jan, 2026 | 20:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

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: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-qtsquts_heroQTSQuTS hero
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-53597
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-1.2||LOW
EPSS-0.03% / 10.54%
||
7 Day CHG~0.00%
Published-02 Jan, 2026 | 15:18
Updated-05 Jan, 2026 | 20:33
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
License Center

A buffer overflow vulnerability has been reported to affect License Center. 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: License Center 2.0.36 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-license_centerLicense Center
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-50362
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5||MEDIUM
EPSS-0.27% / 50.39%
||
7 Day CHG~0.00%
Published-26 Apr, 2024 | 15:01
Updated-11 Sep, 2024 | 13:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTSquts_heroqts
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2024-37050
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.1||MEDIUM
EPSS-1.56% / 81.87%
||
7 Day CHG~0.00%
Published-22 Nov, 2024 | 15:32
Updated-23 Sep, 2025 | 13:43
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to execute code. We have already fixed the vulnerability in the following versions: QTS 5.2.1.2930 build 20241025 and later QuTS hero h5.2.1.2929 build 20241025 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTS
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2024-37049
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.1||MEDIUM
EPSS-1.56% / 81.87%
||
7 Day CHG~0.00%
Published-22 Nov, 2024 | 15:32
Updated-23 Sep, 2025 | 13:43
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to execute code. We have already fixed the vulnerability in the following versions: QTS 5.2.1.2930 build 20241025 and later QuTS hero h5.2.1.2929 build 20241025 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTS
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2024-27128
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-6.4||MEDIUM
EPSS-0.32% / 55.19%
||
7 Day CHG~0.00%
Published-21 May, 2024 | 16:08
Updated-11 Sep, 2024 | 13:38
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute code via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqtsQuTS heroQTSquts_heroqts
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2025-68670
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-9.1||CRITICAL
EPSS-0.21% / 43.05%
||
7 Day CHG~0.00%
Published-27 Jan, 2026 | 15:52
Updated-06 Feb, 2026 | 19:59
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
xrdp improperly checks bounds of domain string length, which leads to Stack-based Buffer Overflow

xrdp is an open source RDP server. xrdp before v0.10.5 contains an unauthenticated stack-based buffer overflow vulnerability. The issue stems from improper bounds checking when processing user domain information during the connection sequence. If exploited, the vulnerability could allow remote attackers to execute arbitrary code on the target system. The vulnerability allows an attacker to overwrite the stack buffer and the return address, which could theoretically be used to redirect the execution flow. The impact of this vulnerability is lessened if a compiler flag has been used to build the xrdp executable with stack canary protection. If this is the case, a second vulnerability would need to be used to leak the stack canary value. Upgrade to version 0.10.5 to receive a patch. Additionally, do not rely on stack canary protection on production systems.

Action-Not Available
Vendor-neutrinolabsneutrinolabsDebian GNU/Linux
Product-xrdpdebian_linuxxrdp
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2017-14854
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.1||CRITICAL
EPSS-11.40% / 93.73%
||
7 Day CHG~0.00%
Published-03 Jun, 2019 | 19:01
Updated-02 Jun, 2026 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A stack buffer overflow exists in one of the Orpak SiteOmat CGI components, allowing for remote code execution. The vulnerability affects all versions prior to 2017-09-25.

Action-Not Available
Vendor-orpakn/a
Product-siteomatn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
Details not found