Lantronix XPress-DR 8.1.0.0 Unauthenticated Configuration Write via UDP 30718
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| LANTRONIX | XPress-DR | unaffected |
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| LANTRONIX | XPress-DR-I | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lantronix | Xpress-dr |
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| Lantronix | Xpress-dr-i |
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Vendor Workaround
To mitigate this vulnerability, connect to the device via Telnet or CLI, open the Security settings (option 6), set “Disable port 77FEh” to Y, then save and exit to disable port 30718 (77FEh).
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.618% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lantronix
Lantronix xpress-dr Lantronix xpress-dr-i |
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| Vendors & Products |
Lantronix
Lantronix xpress-dr Lantronix xpress-dr-i |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | Lantronix XPress-DR and XPress-DR-I (CoBos-family) firmware through 8.1.0.0 contains a missing authentication vulnerability that allows remote attackers to read and persistently overwrite device configuration by sending crafted frames to the unauthenticated UDP configuration protocol on port 30718. Attackers can send a type 0xF8 query to read live configuration data and a type 0xFD frame with exactly 0x78 body bytes to rewrite the device IP address and serial-channel forwarding records, causing changes to commit to EEPROM and persist across reboots. The XPress-DR product series reached end-of-life/end-of-support in February 2025. | |
| Title | Lantronix XPress-DR 8.1.0.0 Unauthenticated Configuration Write via UDP 30718 | |
| Weaknesses | CWE-306 | |
| References |
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| Metrics |
cvssV3_1
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