CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. It affects Windows, Android.
CVE
CVE-2025-13476
Severity
CRITICAL
CVSS
9.8
EPSS
0.34%
Windows Android
Original NVD Description
Rakuten Viber Cloak mode in Android v25.7.2.0g and Windows v25.6.0.0–v25.8.1.0 uses a static and predictable TLS ClientHello fingerprint lacking extension diversity, allowing Deep Packet Inspection (DPI) systems to trivially identify and block proxy traffic, undermining censorship circumvention. (CWE-327)
Related CVEs
Other vulnerabilities affecting the same vendor(s)