CVE-2026-96606Public exploitNetwork attack vector

Unauthenticated configuration disclosure via hidden backup endpoint

Published Sep 23, 2026 · Updated Sep 23, 2026

Information disclosure in LB-LINK BL-CPE600EU 5.8.13 allows remote attackers to download router configuration without authentication. The undocumented /.s3cfg endpoint returns Mifi_config.bin without validating a session, exposing administrator credentials, Wi-Fi keys, and network settings. Network access to the web management interface is sufficient, and the published proof of concept shows that a single HTTP GET retrieves the backup.

CVSS severityUnavailable
Unscored
EPSS probability0.29%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in LB-LINK BL-CPE600EU 5.8.13 allows remote attackers to download router configuration without authentication. The undocumented /.s3cfg endpoint returns Mifi_config.bin without validating a session, exposing administrator credentials, Wi-Fi keys, and network settings. Network access to the web management interface is sufficient, and the published proof of concept shows that a single HTTP GET retrieves the backup.

The record

CVE
CVE-2026-96606
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
LB-LINK
Product
BL-CPE600EU
Classifications
CWE-200, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.8.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LB-LINK · BL-CPE600EUversion=5.8.13

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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