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CVE-2026-26369

JUNG eNet SMART HOME server 2.2.1/2.3.1 Privilege Escalation via setUserGroup

eNet SMART HOME server 2.2.1 and 2.3.1 contains a privilege escalation vulnerability due to insufficient authorization checks in the setUserGroup JSON-RPC method. A low-privileged user (UG_USER) can send a crafted POST request to /jsonrpc/management specifying their own username to elevate their account to the UG_ADMIN group, bypassing intended access controls and gaining administrative capabilities such as modifying device configurations, network settings, and other smart home system functions.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Jung Jung-group
Products
Enet Smart Home Server Enet Smart Home
CVE-2026-26366

JUNG eNet SMART HOME server 2.2.1/2.3.1 Use of Default Credentials

eNet SMART HOME server 2.2.1 and 2.3.1 ships with default credentials (user:user, admin:admin) that remain active after installation and commissioning without enforcing a mandatory password change. Unauthenticated attackers can use these default credentials to gain administrative access to sensitive smart home configuration and control functions.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Jung Jung-group
Products
Enet Smart Home Server Enet Smart Home
CVE-2026-26368

JUNG eNet SMART HOME server 2.2.1/2.3.1 Account Takeover via resetUserPassword

eNet SMART HOME server 2.2.1 and 2.3.1 contains a missing authorization vulnerability in the resetUserPassword JSON-RPC method that allows any authenticated low-privileged user (UG_USER) to reset the password of arbitrary accounts, including those in the UG_ADMIN and UG_SUPER_ADMIN groups, without supplying the current password or having sufficient privileges. By sending a crafted JSON-RPC request to /jsonrpc/management, an attacker can overwrite existing credentials, resulting in direct account takeover with full administrative access and persistent privilege escalation.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Jung Jung-group
Products
Enet Smart Home Server Enet Smart Home
CVE-2026-26367

JUNG eNet SMART HOME server 2.2.1/2.3.1 Arbitrary User Deletion via deleteUserAccount

eNet SMART HOME server 2.2.1 and 2.3.1 contains a missing authorization vulnerability in the deleteUserAccount JSON-RPC method that permits any authenticated low-privileged user (UG_USER) to delete arbitrary user accounts, except for the built-in admin account. The application does not enforce role-based access control on this function, allowing a standard user to submit a crafted POST request to /jsonrpc/management specifying another username to have that account removed without elevated permissions or additional confirmation.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Jung Jung-group
Products
Enet Smart Home Server Enet Smart Home