VDB-316272 · Submit #608018 · CVE-2025-7574

LB-LINK BL-WR9000 up to 20250702 Web Interface /cgi-bin/lighttpd.cgi reboot/restore improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.2	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in LB-LINK BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. Affected by this vulnerability is the function reboot/restore of the file /cgi-bin/lighttpd.cgi of the component Web Interface. The manipulation results in improper authentication. This vulnerability is reported as CVE-2025-7574. The attack can be launched remotely. Moreover, an exploit is present. Applying restrictive firewalling is recommended. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was 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. Affected is the function reboot/restore of the file /cgi-bin/lighttpd.cgi of the component Web Interface. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-7574. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

It is possible to mitigate the weakness by firewalling .

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-21310). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

LB-LINK

Name

Version

20250702

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.8
VulDB Temp Score: 8.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/13/2025 Advisory disclosed
07/13/2025 +0 days VulDB entry created
07/14/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2025-7574 (🔒)
GCVE (CVE): GCVE-0-2025-7574
GCVE (VulDB): GCVE-100-316272
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/13/2025 09:21
Updated: 07/14/2025 13:39
Changes: 07/13/2025 09:21 (58), 07/14/2025 07:23 (31), 07/14/2025 08:46 (1), 07/14/2025 13:39 (1)
Complete: 🔍
Submitter: waiwai24
Cache ID: 216::103

Submitinfo

Accepted

Submit #608018: Blink BL-AX5400P V1.0.19、BL-AX1800 V1.0.19、BL-AC3600 V1.0.22、BL-WR9000 V2.4.9、BL-AC1900 V1.0.2、BL-AC2100_AZ3 V1.0.4 BL-AX5400P V1.0.19、BL-AX1800 V1.0.19、BL-AC3600 V1.0.22、BL-WR9000 V2.4.9、BL-AC1900 V1.0.2、BL-AC2100_AZ3 V1.0.4 Incorrect (by waiwai24)

VulDB is the best source for vulnerability data and more expert information about this specific topic.