CVE-2025-57278

HIGH
Published Sep 9, 2025 Modified Oct 10, 2025 CWE-287

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.

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CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-287 Improper Authentication

Affected Products

Vendor Product
lb-link bl-cpe300m_firmware
lb-link bl-cpe300m

References

Frequently Asked Questions

What is CVE-2025-57278? +
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. It has a CVSS v3.1 base score of 8.8 (HIGH).
How severe is CVE-2025-57278? +
CVE-2025-57278 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-57278? +
CVE-2025-57278 affects products from lb-link, specifically: bl-cpe300m, bl-cpe300m_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-57278? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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