CVE-2026-36959 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
U-Speed	N300 Firmware	1.0.0
U-Speed	N300	-

Related Weaknesses (CWE)

CWE-307

References

http://u-speed.comBroken Link
https://github.com/kirubel-cve/CVE-2026-36959ExploitThird Party Advisory
https://github.com/kirubel-cve/CVE-2026-36959ExploitThird Party Advisory

FAQ

What is CVE-2026-36959?

CVE-2026-36959 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...

How severe is CVE-2026-36959?

CVE-2026-36959 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-36959?

Check the references section above for vendor advisories and patch information. Affected products include: U-Speed N300 Firmware, U-Speed N300.