The vulnerability of the sftp_symlink() function in the src/sftp.c component of the SSH2 protocol implementation library Libssh2 allows a attacker to disclose sensitive information or cause service failures.

The vulnerability of the sftpsymlink function in the src/sftp.c component of the SSH2 protocol implementation in the Libssh2 library is related to the issue of operations going beyond the buffer boundaries in memory. Exploiting this vulnerability could allow a malicious actor to disclose sensitiv...

EulerOS Virtualization 2.12.1 : libssh2 (EulerOS-SA-2026-3594)

According to the versions of the libssh2 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : libssh2 through 1.11.1 reads an attacker-controlled 32-bit attribute count from a publickey-subsystem response and uses it in the...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libssh2 (UTSA-2026-102704)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102704 advisory. libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftpsymlink function in src/sftp.c that allows a malicious...

K000162760: libssh2 vulnerability CVE-2025-15661

Security Advisory Description libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftpsymlink function in src/sftp.c that allows a malicious SSH server or man-in-the-middle attacker to disclose heap memory contents or cause a crash by sending ...

libssh2 - Heap Buffer Over-read via sftp_symlink() in sftp.c

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Linux Distros Unpatched Vulnerability : CVE-2025-15661

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftpsymlink function in src/sftp.c that allows a...

AZL-90936 CVE-2025-15661 affecting package libssh2 for versions less than 1.11.1-4

libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftpsymlink function in src/sftp.c that allows a malicious SSH server or man-in-the-middle attacker to disclose heap memory contents or cause a crash by sending a crafted SSHFXPNAME response...

CVE-2025-15661 libssh2 - Heap Buffer Over-read via sftp_symlink() in sftp.c

libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftpsymlink function in src/sftp.c that allows a malicious SSH server or man-in-the-middle attacker to disclose heap memory contents or cause a crash by sending a crafted SSHFXPNAME response...

CVE-2025-15661: Out-of-bounds Read

libssh2 through 1.11.1, fixed in commit 2dae302, contains an out-of-bounds heap read vulnerability in the sftpsymlink function in src/sftp.c that allows a malicious SSH server or man-in-the-middle attacker to disclose heap memory contents or cause a crash by sending a crafted SSHFXPNAME response...