{"id":12432,"date":"2026-09-04T18:59:24","date_gmt":"2026-09-04T10:59:24","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-7839"},"modified":"2026-09-04T18:59:24","modified_gmt":"2026-09-04T10:59:24","slug":"cve-2026-7839","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-7839","title":{"rendered":"CVE-2026-7839 [CRITICAL] &#8211; UltraVNC repeater through 1.8.2.2 initializes the HTTP administration server with a hardco"},"content":{"rendered":"<p>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 &#8220;adminadmi2&#8221; as the admin password via strcpy_s(saved_password, 64, &#8220;adminadmi2&#8221;). 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 authenticate as administrator using the well-known default credential on a fresh or unmodified installation, gaining full control of the repeater configuration including allow\/deny rules and session visibility.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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 repeate<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-12432","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/12432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}