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CVE-2026-36959
CVE
HighConfirmedExploit available

U-SPEED N300 router V1.0.0 does not implement rate limiting or account lockout protections on the /api/login endpoint. This allows an attac…

CVSS
7.5
High
EPSS
0.00
p28
Published
2026-01-01
Updated
2026-01-01
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.

Tags · CWE
Pre-auth
CWE-307
CAPEC-16
CAPEC-49
CAPEC-560
CAPEC-565
CAPEC-600
CAPEC-652
CAPEC-653
Affected products
N300_firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: N
None (N)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.001 · p28
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-560 · CWE-307
└ via CAPEC-49 · CWE-307
└ via CAPEC-565 · CWE-307
└ via CAPEC-600 · CWE-307
└ via CAPEC-652 · CWE-307
Known exploits — Сканер-ВС
CVE-2026-36959
github-poc · https://github.com/kirubel-cve/CVE-2026-36959
Enterprise
Affected software
ProductVendorStatus
n300_firmware*Tracked