CVE-2026-10831
MEDIUM
6.9
CVSS 4.0
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.
Metadata
Severity & Metrics
6.9
MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L
SSVC — CISA Coordinator
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Moxa | CN2600 Series | — | 1.0 ≤ 4.6 |
| Moxa | NPort 6000 Series | — | 1.0 ≤ 2.3 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-862 | cna | CWE-862: Missing Authorization |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 6.9 | MEDIUM | 4.0 | cna | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L |