{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-7839/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-07-01T03:33:27.724Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-7839","@id":"https://www.cve.org/CVERecord?id=CVE-2026-7839","description":"UltraVNC repeater through 1.8.2.2 initializes the HTTP administration server with a hardcoded default password. In repeater/webgui/settings.c:197, when settings2.txt is absent on first run the repeater writes the literal string \"adminadmi2\" as the admin password via strcpy_s(saved_password, 64, \"adminadmi2\"). The HTTP Basic-auth handler wi_decode_auth() checks this password without rate-limiting or lockout. Any remote attacker who can reach the repeater HTTP port (default TCP 80) can authenticat"},"products":[{"@id":"cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"No fixed version is published yet; monitor the upstream advisory.","timestamp":"2026-07-01T03:33:27.724Z"}]}