CVE-2026-36959
High
Description
U-SPEED N300 router V1.0.0 does not implement rate limiting or account lockout protections on the /api/login endpoint. This allows an attacker on the local network to perform unlimited authentication attempts, enabling brute-force attacks against the administrator account and potential unauthorized access to the router management interface.
SeverityHigh
CVSS7.5
Exploit probability—
ProductU-speed N300 Firmware
PublishedApr 30, 2026
First seenApr 30, 2026
Weakness typeCWE-307CWE-307
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| u-speed n300_firmware | 1.0.0 | — |
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