CVE-2025-7564 LB-LINK BL-AC3600 shadow hard-coded credentials
Hard-coded credentials in the shadow file allow local attackers to gain root privileges on LB-LINK BL-AC3600 routers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7564?
CVE-2025-7564 is a high-severity vulnerability in LB-LINK BL-AC3600, published on 14 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC3600 1.0.22. Affected by this issue is some unknown functionality of the file /etc/shadow. The manipulation with the input root:blinkadmin leads to hard-coded credentials. Local access is required to approach this attack. 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.
Which versions are affected by CVE-2025-7564?
It affects 1 product.
Products include Lb-Link Bl-Ac3600 Firmware.
How do I fix CVE-2025-7564?
No fix has been published for CVE-2025-7564 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-7564 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7564 exists.
Other vulnerabilities in LB-LINK BL-AC3600
Sources
Also known as GHSA-hc7g-5qrx-9jvj.