CVE-2025-13476

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...

CVE-2025-13476

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...

CVE-2025-13476

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...

CVE-2025-13476

CVE-2025-13476 affects Rakuten Viber Cloak mode on Android v25.7.2.0g and Windows v25.6.0.0–v25.8.1.0. The root cause is a consistent, static TLS ClientHello fingerprint with a lack of extension diversity, making DPI systems able to identify and block proxy traffic and undermine censorship circum...

Rakuten Viber Desktop 安全漏洞

Rakuten Viber Desktop is a messaging application developed by Luxembourg-based Viber Inc. There is a security vulnerability in Rakuten Viber Desktop, which stems from the use of a static and predictable TLS ClientHello fingerprint. This vulnerability may lead to the identification and prevention ...

PT-2026-23467

Name of the Vulnerable Software and Affected Versions Rakuten Viber versions 25.6.0.0 through 25.8.1.0 Description Rakuten Viber’s Cloak mode on Android version 25.7.2.0g and Windows versions 25.6.0.0 through 25.8.1.0 employs a consistent TLS ClientHello fingerprint that lacks extension diversity...