Critical Photon OS Security Update - PHSA-2026-5.0-92-0857

Updates of 'strongswan', 'libssh2', 'grub2', 'rubygem-nokogiri' packages of Photon OS have been released...

Critical Photon OS Security Update - PHSA-2026-5.0-91-0857

Updates of 'linux-esx', 'nginx', 'libssh2', 'glibc', 'linux', 'grub2' packages of Photon OS have been released...

USN-8309-1: libssh2 vulnerability

It was discovered that libssh2 incorrectly handled username and password length values during SSH password authentication. A remote attacker could possibly use this issue to cause a denial of service...

CLSA-2026-1779216196 libssh2: Fix of CVE-2026-7598

CVE-2026-7598: fix integer overflow in userauthpassword CVE-2026-7598...

OESA-2026-2336 libssh2 security update

libssh2 is a library implementing the SSH2 protocol as defined by Internet Drafts: SECSH-TRANS22, SECSH-USERAUTH25, SECSH-CONNECTION23, SECSH-ARCH20, SECSH-FILEXFER06, SECSH-DHGEX04, and SECSH-NUMBERS10. Security Fixes: A security vulnerability has been detected in libssh2 up to 1.11.1. The...

CLSA-2026-1778745959 libssh2: Fix of CVE-2026-7598

CVE-2026-7598: add usernamelen/passwordlen bounds checks in userauthlist and userauthpassword to prevent integer overflow when allocating the SSH USERAUTHREQUEST packet buffer...

libssh2: Fix of CVE-2026-7598

CVE-2026-7598: add usernamelen/passwordlen bounds checks in userauthlist and userauthpassword to prevent integer overflow when allocating the SSH USERAUTHREQUEST packet buffer...

CLSA-2026-1778247114 libssh2: Fix of CVE-2026-7598

CVE-2026-7598: fix integer overflow in userauthpassword CVE-2026-7598...

libssh2: integer overflow via large username or password arguments

A flaw was found in the libssh2 library. A remote attacker can exploit an integer overflow vulnerability in the userauthpassword function by manipulating the usernamelen or passwordlen arguments and cause a heap-based buffer overflow. This leads to a crash to the application linked to the library...

JLSEC-2026-492

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file src/userauth.c. Such manipulation of the argument usernamelen/passwordlen leads to integer overflow. The attack may be launched remotely. The name of the patch is...

libssh2: Fix of 2 CVEs

CVE-2019-13115: add bounds-checked stringbuf helpers and use them in diffiehellmansha1 to prevent out-of-bounds read on malformed KEX reply - CVE-2019-17498: harden bounds checks in SSHMSGDISCONNECT, SSHMSGDEBUG and SSHMSGGLOBALREQUEST handlers to prevent integer overflow / out-of-bounds read...

CLSA-2026-1778159627 libssh2: Fix of 2 CVEs

CVE-2019-13115: add bounds-checked stringbuf helpers and use them in diffiehellmansha1 to prevent out-of-bounds read on malformed KEX reply - CVE-2019-17498: harden bounds checks in SSHMSGDISCONNECT, SSHMSGDEBUG and SSHMSGGLOBALREQUEST handlers to prevent integer overflow / out-of-bounds read...

PT-2026-41702

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth password of the file src/userauth.c. Such manipulation of the argument username len/password len leads to integer overflow. The attack may be launched remotely. The name of the patch ...

CVE-2026-7598 affecting package libssh2 for versions less than 1.11.1-2

CVE-2026-7598 affecting package libssh2 for versions less than 1.11.1-2. A patched version of the package is available...

Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2026-7598)

The version of CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-7598 advisory. - A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the...

SUSE CVE-2026-7598

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file src/userauth.c. Such manipulation of the argument usernamelen/passwordlen leads to integer overflow. The attack may be launched remotely. The name of the patch is...

The vulnerability of the _libssh2_packet_add() function in the packet.c component of the SSH2 protocol implementation library Libssh2 allows a attacker to cause a service failure.

The vulnerability of the libssh2packetadd function in the packet.c component of the SSH2 protocol implementation library Libssh2 is related to insufficient input validation. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

The vulnerability in the src/kex.c component of the SSH2 protocol implementation library Libssh2 allows a attacker to access confidential data.

The vulnerability in the src/kex.c component of the SSH2 protocol implementation library Libssh2 involves reading data beyond the allowed buffer limits. Exploiting this vulnerability could allow a malicious actor to gain access to confidential data remotely...

libssh2 userauth.c userauth_password integer overflow

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Linux Distros Unpatched Vulnerability : CVE-2026-7598

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the file src/userauth.c. Such...