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VulnerabilityPublished Updated

CVE-2025-57278: Improper Authentication

Source CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Given the lack of official patches, European organizations should implement immediate compensating controls. First, restrict access to the router’s management interface to trusted IP addresses and networks using firewall rules or VPNs to minimize exposure. Disable remote management features unless absolutely necessary and enforce strong network segmentation to isolate the router management network from critical assets. Monitor network logs for unusual IP address reuse or multiple administrative sessions originating from the same IP. Employ network-level authentication and encryption mechanisms such as IPsec or SSL/TLS tunnels to protect management traffic. Where possible, replace affected routers with models from vendors with robust security track records and timely patching policies. Additionally, coordinate with LB-Link and ISPs to obtain firmware updates or advisories. Educate network administrators about the risks of IP address spoofing and session hijacking to enhance operational vigilance.

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.

References

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