CVE-2025-7572Network attack vector

Unauthenticated host information disclosure via bs_GetHostInfo

Published Jul 14, 2025 · Updated Jul 14, 2025

Information disclosure in LB-LINK BL-AC1900 and five other router models version 20250702 allows remote attackers to read host information. The /cgi-bin/lighttpd.cgi handler calls bs_GetHostInfo in libblinkapi.so without enforcing access control and returns protected host data. BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P, and BL-WR9000 are also affected; no authentication or user interaction is required.

CVSS severity5.3
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in LB-LINK BL-AC1900 and five other router models version 20250702 allows remote attackers to read host information. The /cgi-bin/lighttpd.cgi handler calls bs_GetHostInfo in libblinkapi.so without enforcing access control and returns protected host data. BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P, and BL-WR9000 are also affected; no authentication or user interaction is required.

The record

CVE
CVE-2025-7572
Published
Jul 14, 2025
Updated
Jul 14, 2025
Vendor
LB-LINK
Product
BL-AX1800
Classifications
CWE-200, CWE-284
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2025Record 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=20250702

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LB-LINK · BL-AX1800version=20250702
LB-LINK · BL-AC1900version=20250702
LB-LINK · BL-WR9000version=20250702
LB-LINK · BL-AC2100_AZ3version=20250702
LB-LINK · BL-AX5400Pversion=20250702
LB-LINK · BL-AC3600version=20250702

Published CVSS scores

5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0VulDBAV:N/AC:L/Au:N/C:P/I:N/A:N

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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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