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

The CVE-2025-13476 entry concerns Rakuten Viber in Cloak mode on Android 25.7.2.0g and Windows 25.6.0.0–25.8.1.0, where a static, predictable TLS ClientHello fingerprint with limited extension diversity enables DPI systems to reliably identify and block proxy traffic, undermining censorship circu...

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...

CVE-2026-27017

A flaw was found in uTLS. When using GREASE Encrypted ClientHello ECH, uTLS versions 1.6.0 through 1.8.0 may exhibit a fingerprint mismatch with Chrome. This occurs due to an inconsistent selection of cipher suites between the outer ClientHello and the ECH, potentially allowing a remote observer ...

CVE-2026-26994

A flaw was found in uTLS. An active network attacker could exploit this vulnerability by manipulating the initial connection message ClientHello during the TLS handshake. This manipulation forces a downgrade from the more secure TLS 1.3 protocol to an older, less secure version like TLS 1.2. As a...

CVE-2026-26994

uTLS is a fork of crypto/tls, created to customize ClientHello for fingerprinting resistance while still using it for the handshake. In versions 1.6.7 and below, uTLS did not implement the TLS 1.3 downgrade protection mechanism specified in RFC 8446 Section 4.1.3 when using a uTLS ClientHello spe...

CVE-2026-26994

The CVE-2026-26994 issue affects uTLS (a fork of crypto/tls) where versions 1.6.7 and earlier fail to implement TLS 1.3 downgrade protection as per RFC 8446 4.1.3 when using a uTLS ClientHello spec. An active network attacker could downgrade a TLS 1.3 handshake to a lower version (e.g., 1.2) by o...

CVE-2026-27017 uTLS has a Chrome Parrot Fingerprint Vulnerability due to GREASE ECH Cipher Suite Mismatch

uTLS is a fork of crypto/tls, created to customize ClientHello for fingerprinting resistance while still using it for the handshake. Versions 1.6.0 through 1.8.0 contain a fingerprint mismatch with Chrome when using GREASE ECH, related to cipher suite selection. When Chrome selects the preferred...

CVE-2026-27017

uTLS is a fork of crypto/tls, created to customize ClientHello for fingerprinting resistance while still using it for the handshake. Versions 1.6.0 through 1.8.0 contain a fingerprint mismatch with Chrome when using GREASE ECH, related to cipher suite selection. When Chrome selects the preferred...

Use of a Cryptographic Primitive with a Risky Implementation

Overview Affected versions of this package are vulnerable to Use of a Cryptographic Primitive with a Risky Implementation in the HelloChrome120, HelloChrome120PQ, HelloChrome131 and HelloChrome133 symbols due to inconsistent ciphersuite selection between the outer ClientHello and ECH for GREASE...

GnuTLS 安全漏洞

GnuTLS is an open-source, free security communication library developed by GnuTLS that enables the implementation of SSL, TLS, and DTLS protocols. There is a security vulnerability in gnutls. This vulnerability stems from the possibility of remote, unverified attackers sending specially crafted...

CVE-2026-24904 TrustTunnel has `client_random_prefix` rule bypass via fragmented or partial TLS ClientHello

TrustTunnel is an open-source VPN protocol with a rule bypass issue in versions prior to 0.9.115. In tlslistener.rs, TlsListener::listen peeks 1024 bytes and calls extractclientrandom.... If parsetlsplaintext fails for example, a fragmented/partial ClientHello split across TCP writes,...

CVE-2026-24904 TrustTunnel has `client_random_prefix` rule bypass via fragmented or partial TLS ClientHello

TrustTunnel is an open-source VPN protocol with a rule bypass issue in versions prior to 0.9.115. In tlslistener.rs, TlsListener::listen peeks 1024 bytes and calls extractclientrandom.... If parsetlsplaintext fails for example, a fragmented/partial ClientHello split across TCP writes,...

CVE-2026-24904 TrustTunnel has `client_random_prefix` rule bypass via fragmented or partial TLS ClientHello

TrustTunnel is an open-source VPN protocol with a rule bypass issue in versions prior to 0.9.115. In tlslistener.rs, TlsListener::listen peeks 1024 bytes and calls extractclientrandom.... If parsetlsplaintext fails for example, a fragmented/partial ClientHello split across TCP writes,...

MiracleLinux 4 : openssl-1.0.0-10.AXS4 (AXSA:2011-715:01)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2011-715:01 advisory. The OpenSSL toolkit provides support for secure communications between machines. OpenSSL includes a certificate management tool and shared libraries which...

PT-2026-7242

Name of the Vulnerable Software and Affected Versions affected versions not specified Description A flaw exists related to pre-shared key PSK binder verification during Transport Layer Security TLS 1.3 resumption attempts. The issue is triggered when an invalid PSK binder value is present in the...

Potential DoS Vulnerability through Multiple KeyShareEntry with Same Group in TLS 1.3 ClientHello

...

CVE-2025-11933

Improper Input Validation in the TLS 1.3 CKS extension parsing in wolfSSL 5.8.2 and earlier on multiple platforms allows a remote unauthenticated attacker to potentially cause a denial-of-service via a crafted ClientHello message with duplicate CKS extensions...