CVE-2025-45987

CRITICAL

b-link Firmware - OS Command Injection via DNS Parameters

Title source: llm

Description

Blink routers BL-WR9000 V2.4.9 , BL-AC2100_AZ3 V1.0.4, BL-X10_AC8 v1.0.5 , BL-LTE300 v1.2.3, BL-F1200_AT1 v1.0.0, BL-X26_AC8 v1.2.8, BLAC450M_AE4 v4.0.0 and BL-X26_DA3 v1.2.7 were discovered to contain multiple command injection vulnerabilities via the dns1 and dns2 parameters in the bs_SetDNSInfo function.

References (1)

Core 1

Core References

Exploit

https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_dns1%20Unauthorized%20command%20injection/The%20LB-LINK_dns1%20command%20is%20used%20to%20inject%20the%20information.md

View Exploit ZIP pw:eip

Scores

CVSS v3 9.8

EPSS 0.0226

EPSS Percentile 80.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-77

Status published

Products (7)

b-link/bl-ac2100_az3_firmware 1.0.4

b-link/bl-f1200_at1_firmware 1.0.0

b-link/bl-lte300_firmware 1.2.3

b-link/bl-wr9000_firmware 2.4.9

b-link/bl-x26_ac8_firmware 1.2.8

b-link/bl-x26_da3_firmware 1.2.7

b-link/blac450m_ae4_firmware 4.0.0

Published Jun 13, 2025

Tracked Since Feb 18, 2026