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CVE-2025-57278

Published: Sep 9, 2025Updated: Oct 10, 2025 Sources: CVE List NVDCWE-287
8.8HIGH
NVD MITRE
EPSS Score
0.4%
Top 67.2%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available
Self-Check
Not available

Description

The LB-Link BL-CPE300M AX300 4G LTE Router firmware version BL-R8800_B10_ALK_SL_V01.01.02P42U14_06 does not implement proper session handling. After a user authenticates from a specific IP address, the router grants access to any other client using that same IP, without requiring credentials or verifying client identity. There are no session tokens, cookies, or unique identifiers in place. This flaw allows an attacker to obtain full administrative access simply by configuring their device to use the same IP address as a previously authenticated user. This results in a complete authentication bypass.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287

Affected Products

lb-link
commercial
bl-cpe300m firmwareEmbedded
Networking Infrastructure / router-switch
and 1 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://www.lb-link.com/CPE300M-AX300-4G-LTE-Router-pd502775568.html
lb-link.com
https://www.zyenra.com/blog/improper-ip-bound-session-authentication-in-lb-link-cpe300m
zyenra.com

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