CVE-2025-7573: LB-LINK BL-WR9000 lighttpd.cgi bs_GetManPwd information disclosure

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-14 · updated 2026-06-17
Weakness: CWE-200

Description

A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. This issue affects the function bs_GetManPwd in the library libblinkapi.so of the file /cgi-bin/lighttpd.cgi. The manipulation leads to information disclosure. The attack may 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.

Affected products

LB-LINK BL-AC1900: 20250702
LB-LINK BL-AC2100_AZ3: 20250702
LB-LINK BL-AC3600: 20250702
LB-LINK BL-AX1800: 20250702
LB-LINK BL-AX5400P: 20250702
LB-LINK BL-WR9000: 20250702

References

https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Web_Interface_Login_Credential_Disclosure_Risk_in_Various_Blink_Router_Models.md
https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Web_Interface_Login_Credential_Disclosure_Risk_in_Various_Blink_Router_Models.md#poc
https://vuldb.com/?ctiid.316271
https://vuldb.com/?id.316271
https://vuldb.com/?submit.608010
https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Web_Interface_Login_Credential_Disclosure_Risk_in_Various_Blink_Router_Models.md
https://github.com/waiwai24/0101/blob/main/CVEs/Blink/Web_Interface_Login_Credential_Disclosure_Risk_in_Various_Blink_Router_Models.md#poc

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