CVE-2026-36959

HIGH 1 PoC
MEDIUM Priority: 0.03 BB Relevance: 85/100
Published: 2026-04-30 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: None
A: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
u-speed n300_firmware 1.0.0

References & Advisories (1)

https://github.com/kirubel-cve/CVE-2026-36959
Exploit Third Party Advisory

Proof of Concept (1)

Bug Bounty Relevance

85 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.35%
Raw Score 0.003490
Percentile 28.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00349
2026-11-12
0.00349
2026-11-10
0.00349
2026-11-09
0.00349
2026-11-08
0.00349

Intelligence Sources

nvd ref →