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CVE-2026-7839

CRITICAL · CVSS 9.1 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-07-01T05:16:24.680 · Çekilme zamanı: 2026-07-01T06:12:12.512472+00:00

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Uzaktan istismar edilebilir olabilir.

Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

GitHub PoC Linkleri

Not: Bu bağlantılar yalnızca güvenlik araştırması ve doğrulama amacıyla listelenmiştir.

CVE
CVE-2026-7839
Severity
CRITICAL
CVSS
9.1
EPSS
Yok

Orijinal NVD Açıklaması

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 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.