CVE-2025-7572

LB-LINK BL-WR9000 lighttpd.cgi bs_GetHostInfo information disclosure

Severity Score

5.5

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

NVD
MITRE

A vulnerability classified as critical was found in LB-LINK BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. This vulnerability affects the function bs_GetHostInfo in the library libblinkapi.so of the file /cgi-bin/lighttpd.cgi. The manipulation leads to information disclosure. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

In LB-LINK BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 bis 20250702 wurde eine Schwachstelle entdeckt. Sie wurde als kritisch eingestuft. Es geht um die Funktion bs_GetHostInfo in der Bibliothek libblinkapi.so der Datei /cgi-bin/lighttpd.cgi. Durch das Beeinflussen mit unbekannten Daten kann eine information disclosure-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

*Credits: waiwai24

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

Low

None

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

Low

None

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-07-13 CVE Reserved
2025-07-14 CVE Published
2025-07-14 CVE Updated
2025-07-14 EPSS Updated
2025-07-14 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (4)

URL	Tag	Source
https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Information_Exposure_Vulnerabilities_in_Various_Blink_Router_Models.md	Related
https://vuldb.com/?id.316270	Technical Description
https://vuldb.com/?submit.608009	Third Party Advisory

URL	Date	SRC
https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Information_Exposure_Vulnerabilities_in_Various_Blink_Router_Models.md#poc	2025-07-14

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Lb-link Search vendor "Lb-link"		Bl-ac1900 Search vendor "Lb-link" for product "Bl-ac1900"				*		-		Affected
Lb-link Search vendor "Lb-link"		Bl-wr9000 Search vendor "Lb-link" for product "Bl-wr9000"				*		-		Affected