CVE-2026-19901: LB-LINK X-PRO easycwmp hard-coded credentials
A security flaw has been discovered in LB-LINK X-PRO 1.0.22-20231206. This affects an unknown function of the file /etc/config/easycwmp. The manipulation results in hard-coded credentials. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is reported as difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
LB-LINK X-PROto a version that resolves this vulnerability.Fixed in 1.0.22-20231206 - Compensating control
Since the remote exploit is publicly available and results in hard-coded credentials, isolate the affected device from untrusted networks (e.g., restrict/deny remote access at the network level) until credentials can be remediated.
- Operational
Rotate or replace any credentials associated with easycwmp after suspected exploitation, because the vulnerability results in hard-coded credentials in /etc/config/easycwmp.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-19901?
CVE-2026-19901 has a severity rating of 8.1, indicating a high-risk vulnerability.
How do I fix CVE-2026-19901?
To mitigate CVE-2026-19901, update the LB-LINK X-PRO device to the latest firmware version that patches this vulnerability.
What type of access is required to exploit CVE-2026-19901?
CVE-2026-19901 can be exploited remotely without requiring user interaction, making it a serious threat.
What impact does CVE-2026-19901 have on the system?
CVE-2026-19901 allows attackers to gain unauthorized access due to hard-coded credentials, compromising the confidentiality, integrity, and availability of the affected system.
Can CVE-2026-19901 be exploited easily?
While attacks exploiting CVE-2026-19901 are possible, they are considered highly complex.