CVE-2025-13476 — Rakuten Viber uses broken or risky cryptographic Algorithm
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 De…
Published: 2026-03-05 · CVSS: 9.8 · CVSS 3.1
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)
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7