Astra Linux – Vulnerability in libssh2

In libssh2 v1.9.0 and earlier versions, the SSHMSGDISCONNECT logic in packet.c has an integer overflow in a bounds check, allowing an attacker to specify an arbitrary out-of-bounds offset for a subsequent memory read. A malicious SSH server may be able to disclose sensitive information or cause a...

Astra Linux – Vulnerability in libssh2

A vulnerability was discovered in the function libssh2packetadd in libssh2 1.10.0, allowing attackers to access out-of-bound memory...

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...

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-2026-1778745959 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...

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...

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...

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...

Integer Overflow or Wraparound

Overview Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the userauthpassword function in userauth.c. An attacker can cause memory corruption or potentially execute arbitrary code by sending specially crafted values for usernamelen or passwordlen remotely...

ALPINE-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...

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...

DEBIAN-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...