Improper Authorization of Break Signal Commands in Devices
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Moxa | NPort 6000 Series | unaffected |
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| Moxa | CN2600 Series | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Moxa | Cn2600 Series |
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||||||||
| Moxa | Nport 5600 Series |
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Vendor Solution
Please refer to the security advisory: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262370-cve-2026-10831-improper-authorization-vulnerability-in-serial-device-servers
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.292% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Moxa
Moxa cn2600 Series Moxa nport 5600 Series |
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| Vendors & Products |
Moxa
Moxa cn2600 Series Moxa nport 5600 Series |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A denial-of-service vulnerability exists in NPort devices because of improper access control on the command port. The command interface does not properly validate whether a sender is associated with a valid data port session before accepting break signal commands. A remote attacker with network access can send crafted requests to disrupt serial communication for an active user session. | |
| Title | Improper Authorization of Break Signal Commands in Devices | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV4_0
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