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Vulnerability Details :

CVE-2026-26239

Summary
Assigner-qnap
Assigner Org ID-2fd009eb-170a-4625-932b-17a53af1051f
Published At-10 Jun, 2026 | 03:15
Updated At-10 Jun, 2026 | 15:14
Rejected At-
Credits

File Station 5

A buffer overflow vulnerability has been reported to affect File Station 5. 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 version: File Station 5 5.5.6.5208 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 | 03:15
Updated At:10 Jun, 2026 | 15:14
Rejected At:
â–¼CVE Numbering Authority (CNA)
File Station 5

A buffer overflow vulnerability has been reported to affect File Station 5. 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 version: File Station 5 5.5.6.5208 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 5.5.6.5208 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-121CWE-121
Type: CWE
CWE ID: CWE-121
Description: CWE-121
Metrics
VersionBase scoreBase severityVector
4.08.7HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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 5.5.6.5208 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-26-37
N/A
Hyperlink: https://www.qnap.com/en/security-advisory/qsa-26-37
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 | 04:17
Updated At:12 Jun, 2026 | 12:53

A buffer overflow vulnerability has been reported to affect File Station 5. 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 version: File Station 5 5.5.6.5208 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
Secondary4.08.7HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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
Primary3.18.1HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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: 8.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/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 5.5.6.5208(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-26-37security@qnapsecurity.com.tw
Broken Link
Hyperlink: https://www.qnap.com/en/security-advisory/qsa-26-37
Source: security@qnapsecurity.com.tw
Resource:
Broken Link

Change History

0
Information is not available yet

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Matching Score-6
Assigner-QNAP Systems, Inc.
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Rejected-Not Available
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Matching Score-6
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
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CWE ID-CWE-121
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CVE-2024-27130
Matching Score-6
Assigner-QNAP Systems, Inc.
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CVSS Score-7.2||HIGH
EPSS-81.16% / 99.19%
||
7 Day CHG+0.17%
Published-21 May, 2024 | 16:08
Updated-11 Sep, 2024 | 13:39
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KEV Added-Not Available
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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-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2026-26240
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.3||MEDIUM
EPSS-0.14% / 33.12%
||
7 Day CHG~0.00%
Published-10 Jun, 2026 | 05:03
Updated-12 Jun, 2026 | 12:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-file_stationFile Station 5
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2025-62858
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-5.1||MEDIUM
EPSS-0.12% / 31.08%
||
7 Day CHG~0.00%
Published-09 Jun, 2026 | 06:17
Updated-09 Jun, 2026 | 13:11
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 5.2.9.3410 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
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
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 5.2.5.3145 build 20250526 and later QuTS hero h5.2.5.3138 build 20250519 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-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

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-2023-41278
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

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_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-2025-59383
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-2.7||LOW
EPSS-0.14% / 34.58%
||
7 Day CHG~0.00%
Published-20 Mar, 2026 | 16:22
Updated-14 Apr, 2026 | 01:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Media Streaming Add-on

A buffer overflow vulnerability has been reported to affect Media Streaming Add-On. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Media Streaming Add-on 500.1.1 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-media_streaming_add-onMedia Streaming Add-on
CWE ID-CWE-121
Stack-based Buffer Overflow
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-2024-53695
Matching Score-6
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-6
Assigner-QNAP Systems, Inc.
CVSS Score-6.3||MEDIUM
EPSS-0.79% / 74.37%
||
7 Day CHG~0.00%
Published-07 Mar, 2025 | 16:13
Updated-16 Jan, 2026 | 18:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
HBS 3 Hybrid Backup Sync

A buffer overflow vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If exploited, the vulnerability could allow remote attackers to modify memory or crash processes. We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 25.1.4.952 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-hybrid_backup_syncHBS 3 Hybrid Backup Sync
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-121
Stack-based Buffer Overflow
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.
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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-2022-1669
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
ShareView Details
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
CVSS Score-6.8||MEDIUM
EPSS-0.19% / 40.77%
||
7 Day CHG~0.00%
Published-24 May, 2022 | 17:38
Updated-16 Apr, 2025 | 16:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Circutor COMPACT DC-S BASIC

A buffer overflow vulnerability has been detected in the firewall function of the device management web portal. The device runs a CGI binary (index.cgi) to offer a management web application. Once authenticated with valid credentials in this web portal, a potential attacker could submit any "Address" value and it would be copied to a second variable with a "strcpy" vulnerable function without checking its length. Because of this, it is possible to send a long address value to overflow the process stack, controlling the function return address.

Action-Not Available
Vendor-circutorCIRCUTOR
Product-compact_dc-s_basic_firmwarecompact_dc-s_basicCOMPACT DC-S BASIC
CWE ID-CWE-121
Stack-based Buffer Overflow
CVE-2025-5527
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-1.70% / 82.71%
||
7 Day CHG~0.00%
Published-03 Jun, 2025 | 20:31
Updated-09 Jun, 2025 | 15:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda RX3 SetStaticRouteCfg save_staticroute_data stack-based overflow

A vulnerability was found in Tenda RX3 16.03.13.11_multi_TDE01. It has been rated as critical. This issue affects the function save_staticroute_data of the file /goform/SetStaticRouteCfg. The manipulation of the argument list leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-rx3_firmwarerx3RX3
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-5685
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-0.93% / 76.57%
||
7 Day CHG~0.00%
Published-05 Jun, 2025 | 20:00
Updated-10 Jun, 2025 | 15:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda CH22 Natlimit formNatlimit stack-based overflow

A vulnerability, which was classified as critical, was found in Tenda CH22 1.0.0.1. This affects the function formNatlimit of the file /goform/Natlimit. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-ch22ch22_firmwareCH22
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-5572
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-1.22% / 79.47%
||
7 Day CHG~0.00%
Published-04 Jun, 2025 | 06:00
Updated-06 Jun, 2025 | 18:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
D-Link DCS-932L setSystemEmail stack-based overflow

A vulnerability was found in D-Link DCS-932L 2.18.01. It has been declared as critical. Affected by this vulnerability is the function setSystemEmail of the file /setSystemEmail. The manipulation of the argument EmailSMTPPortNumber leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Action-Not Available
Vendor-D-Link Corporation
Product-dcs-932ldcs-932l_firmwareDCS-932L
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-5503
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-8.7||HIGH
EPSS-1.48% / 81.42%
||
7 Day CHG~0.00%
Published-03 Jun, 2025 | 14:31
Updated-04 Jun, 2025 | 14:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
TOTOLINK X15 formMapReboot stack-based overflow

A vulnerability, which was classified as critical, was found in TOTOLINK X15 1.0.0-B20230714.1105. This affects the function formMapReboot of the file /boafrm/formMapReboot. The manipulation of the argument deviceMacAddr leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Action-Not Available
Vendor-TOTOLINK
Product-X15
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
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