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Vulnerability Details :

CVE-2025-2026

Summary
Assigner-Moxa
Assigner Org ID-2e0a0ee2-d866-482a-9f5e-ac03d156dbaa
Published At-31 Dec, 2025 | 07:32
Updated At-31 Dec, 2025 | 16:07
Rejected At-
Credits

The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition. An authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service.

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)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Moxa
Assigner Org ID:2e0a0ee2-d866-482a-9f5e-ac03d156dbaa
Published At:31 Dec, 2025 | 07:32
Updated At:31 Dec, 2025 | 16:07
Rejected At:
▼CVE Numbering Authority (CNA)

The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition. An authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service.

Affected Products
Vendor
Moxa Inc.Moxa
Product
NPort 6100-G2/6200-G2 Series
Default Status
unaffected
Versions
Affected
  • 1.0.0 (custom)
Unaffected
  • 1.1.0 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-170CWE-170: Improper Null Termination
Type: CWE
CWE ID: CWE-170
Description: CWE-170: Improper Null Termination
Metrics
VersionBase scoreBase severityVector
4.07.1HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 7.1
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-153CAPEC-153: Input Data Manipulation
CAPEC ID: CAPEC-153
Description: CAPEC-153: Input Data Manipulation
Solutions

NPort 6100-G2/6200-G2 Series * Update to firmware v1.1.0 or later

Configurations

Workarounds

Exploits

Credits

finder
Cory YH Tseng
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-251731-cve-2025-1977-cve-2025-2026-multiple-vulnerabilities-in-nport-6100-g2-6200-g2-series
vendor-advisory
Hyperlink: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-251731-cve-2025-1977-cve-2025-2026-multiple-vulnerabilities-in-nport-6100-g2-6200-g2-series
Resource:
vendor-advisory
▼Authorized 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
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:psirt@moxa.com
Published At:31 Dec, 2025 | 08:15
Updated At:31 Dec, 2025 | 20:42

The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition. An authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service.

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
Secondary4.07.1HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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: Secondary
Version: 4.0
Base score: 7.1
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-170Secondarypsirt@moxa.com
CWE ID: CWE-170
Type: Secondary
Source: psirt@moxa.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-251731-cve-2025-1977-cve-2025-2026-multiple-vulnerabilities-in-nport-6100-g2-6200-g2-seriespsirt@moxa.com
N/A
Hyperlink: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-251731-cve-2025-1977-cve-2025-2026-multiple-vulnerabilities-in-nport-6100-g2-6200-g2-series
Source: psirt@moxa.com
Resource: N/A

Change History

0
Information is not available yet

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