PT-2026-36652

Name of the Vulnerable Software and Affected Versions Gitea affected versions not specified Description The built-in SSH server uses default configurations that advertise weak or broken key exchange, MAC, and host key algorithms. Specifically, the server supports the ecdh-sha2-nistp256,...

openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables

A flaw was found in the OpenSSH GSSAPI Generic Security Service Application Program Interface delta patches, as included in various Linux distributions. A remote attacker could exploit this by sending an unexpected GSSAPI message type during the key exchange process. This occurs because the...

Debian dsa-6204 : openssh-client - security update

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6204 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6204-1 [email protected]...

Debian dla-4535 : openssh-client - security update

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4535 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4535-1 [email protected] https://www.debian.org/lts/security/...

@node-oauth/oauth2-server: PKCE code_verifier ABNF not enforced in token exchange allows brute-force redemption of intercepted authorization codes

Summary The token exchange path accepts RFC7636-invalid codeverifier values including one-character strings for S256 PKCE flows. Because short/weak verifiers are accepted and failed verifier attempts do not consume the authorization code, an attacker who intercepts an authorization code can...

[SECURITY] [DLA 4535-1] openssh security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4535-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort April 16, 2026 https://wiki.debian.org/LTS -...

Security Bulletin: Vulnerability in libssh affects IBM Netezza Appliance

Summary The libssh package is used by IBM Netezza Appliance . IBM Netezza Appliance has addressed the applicable CVE CVE-2025-8277 Vulnerability Details CVEID:CVE-2025-8277 DESCRIPTION: A flaw was found in libssh's handling of key exchange KEX processes when a client repeatedly sends incorrect KE...

Security Bulletin: IBM Cloud Pak for Data System (CPDS 2.0) - Insufficient Verification in cryptography package

Summary IBM Cloud Pak for Data System CPDS 2.0 uses the Python cryptography package version 3.3.2, which contains a critical vulnerability CVE-2026-26007 affecting elliptic curve cryptography operations. The package fails to verify that public key points belong to the expected prime-order subgrou...

Microsoft Patch Tuesday for April 2026 - Snort Rule and Prominent Vulnerabilities

Microsoft has released its monthly security update for April 2026, which includes 165 vulnerabilities affecting a wide range of products, including eight Microsoft marked as "critical." CVE-2026-23666 is a critical Denial of Service DoS vulnerability that affects the .NET framework. Successful...

EUVD-2026-22641

Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network...

CVE-2026-33824

Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network...

CVE-2026-33824 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability

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CVE-2026-33824 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability

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CVE-2026-33824

CVE-2026-33824 is a Windows IKE Extension double-free remote code execution affecting IKEV2; described as wormable by ZDI with exploitation possible over UDP/500-4500 and no user interaction. Affected: Windows IKE Service Extensions; impact is remote code execution with SYSTEM-level access on unp...

Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability

Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network...

KB5082142: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (April 2026)

The remote Windows host is missing security update 5082142. It is, therefore, affected by multiple vulnerabilities - Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network. CVE-2026-33824 - Protection mechanism failure in Windows Shell allows an...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : OpenSSL vulnerabilities (USN-8155-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8155-1 advisory. Viktor Dukhovni discovered that OpenSSL incorrectly negotiated the expected preferred key exchange group when used as a TLS 1.3 serve...

OPENSUSE-SU-2026:20506-1 Security update for python-cryptography

This update for python-cryptography fixes the following issues: - CVE-2026-34073: Fixed X.509 bypass of name constraints on wildcard SANs with matching peer names. bsc1260876 - CVE-2026-26007: missing validation can lead to security issues for signature verification ECDSA and shared key negotiati...

SUSE-SU-2026:21165-1 Security update for python-cryptography

This update for python-cryptography fixes the following issues: - CVE-2026-34073: Fixed X.509 bypass of name constraints on wildcard SANs with matching peer names. bsc1260876 - CVE-2026-26007: missing validation can lead to security issues for signature verification ECDSA and shared key negotiati...

EUVD-2025-209397

A Key Exchange without Entity Authentication vulnerability in the SSH implementation of Juniper Networks Apstra allows a unauthenticated, MITM attacker to impersonate managed devices. Due to insufficient SSH host key validation an attacker can perform a machine-in-the-middle attack on the SSH...