PT-2026-37962

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: JSSE. Supported versions that are affected are Oracle Java SE: 11.0.17, 17.0.5, 19.0.1; Oracle GraalVM Enterprise Edition: 20.3.8, 21.3.4 and 22.3.0. Easily exploitable vulnerability allows...

EUVD-2026-26926

A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in mergehandshakepacket where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the messagelength field remains...

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. GnuTLS has a security vulnerability, which stems from the mergehandshakepacket function in the DTLS handshake reassembly logic not verifying the...

Integer Underflow (Wrap or Wraparound)

Overview Affected versions of this package are vulnerable to Integer Underflow Wrap or Wraparound via the DTLS handshake parsing process. An attacker can cause an out-of-bounds read and potentially disclose sensitive memory or crash the application by sending specially crafted DTLS handshake...

pyOpenSSL: DTLS cookie callback buffer overflow

A flaw was found in pyOpenSSL. The setcookiegeneratecallback callback function can be used to generate DTLS cookies. When the callback returns a cookie string or byte sequence longer than 256 bytes, a buffer overflow can be triggered due to a missing bounds checking before copying the data to a...

EUVD-2026-21214

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow...

Linux Distros Unpatched Vulnerability : CVE-2026-5264

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow...

CVE-2026-5264

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow...

EUVD-2026-21180

In wolfSSL, ARIA-GCM cipher suites used in TLS 1.2 and DTLS 1.2 reuse an identical 12-byte GCM nonce for every application-data record. Because wcAriaEncrypt is stateless and passes the caller-supplied IV verbatim to the MagicCrypto SDK with no internal counter, and because the explicit IV is...

CVE-2026-5446 wolfSSL ARIA-GCM TLS 1.2/DTLS 1.2 GCM nonce reuse

In wolfSSL, ARIA-GCM cipher suites used in TLS 1.2 and DTLS 1.2 reuse an identical 12-byte GCM nonce for every application-data record. Because wcAriaEncrypt is stateless and passes the caller-supplied IV verbatim to the MagicCrypto SDK with no internal counter, and because the explicit IV is...

UBUNTU-CVE-2026-26014

Pion DTLS is a Go implementation of Datagram Transport Layer Security. Pion DTLS versions v1.0.0 through v3.0.10 and 3.1.0 use random nonce generation with AES GCM ciphers, which makes it easier for remote attackers to obtain the authentication key and spoof data by leveraging the reuse of a nonc...

Pion DTLS 信息泄露漏洞

Pion DTLS is an open-source implementation of the DTLS Data Transfer Layer Security Protocol based on the Go language. Versions of Pion DTLS from 1.0.0 to 3.1.0 have a vulnerability related to information leakage. This vulnerability stems from the use of random numbers for AES GCM encryption, whi...

PT-2026-7719

Name of the Vulnerable Software and Affected Versions Pion DTLS versions 1.0.0 through 3.1.0 Description Pion DTLS, a Go implementation of Datagram Transport Layer Security, is susceptible to an issue where the use of random nonce generation with AES GCM ciphers allows remote attackers to...

Astra Linux – Vulnerability in OpenSSL

Issue summary: Clients that use RFC7250 Raw Public Keys RPKs to authenticate a server may fail to notice that the server was not authenticated, because the handshake does not abort as expected when the SSLVERIFYPEER verification mode is set. Impact summary: TLS and DTLS connections that use raw...

CVE-2025-65499

A flaw was found in libcoap. A remote attacker can cause a denial of service via a NULL pointer dereference due to improper handling of the return values of OpenSSL functions during DTLS Datagram Transport Layer Security operations...

CVE-2025-65500

A flaw was found in libcoap. A remote attacker can cause a denial of service via a NULL pointer dereference due to improper handling of the return values of OpenSSL functions during DTLS Datagram Transport Layer Security operations...

CVE-2025-65497

A flaw was found in libcoap. A remote attacker can cause a denial of service via a NULL pointer dereference due to improper handling of the return values of OpenSSL functions during DTLS Datagram Transport Layer Security operations...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference via the coapdtlsinfocallback function when a DTLS handshake occurs and SSLgetappdata returns NULL. An attacker can cause the application to crash by initiating a specially crafted DTLS handshake. Remediation...

DEBIAN-CVE-2025-65496

NULL pointer dereference in coapdtlsgeneratecookie in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSLgetSSLCTX to return NULL...

UBUNTU-CVE-2025-65497

NULL pointer dereference in coapdtlsgeneratecookie in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSLgetSSLCTX to return NULL...