CVE-2026-63091

ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the modsftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64MAX, which results in a negative offt value. Attackers...

CVE-2026-63091

ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the modsftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64MAX, which results in a negative offt value. Attackers...

[SECURITY] Fedora 43 Update: python-asyncssh-2.23.1-1.fc43

Python 3 library for asynchronous client and server-side SSH communication. It uses the Python asyncio module and implements many SSH protocol features such as the various channels, SFTP, SCP, forwarding, session multiplexing over a connection and more...

Linux Distros Unpatched Vulnerability : CVE-2026-63091

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the modsftp module's SCP size-record parser that allows authenticated...

Fedora 43 : python-asyncssh (2026-574496d9ae)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-574496d9ae advisory. import asyncssh 2.23.1 Fix CVE-2026-54590: Unauthorized file modification via authorized-keys directory escape Fix CVE-2026-54591: Arbitrary file...

Fedora 44 : python-asyncssh (2026-1f248487e4)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-1f248487e4 advisory. update to version 2.24.0 Fix CVE-2026-54590: Unauthorized file modification via authorized-keys directory escape Fix CVE-2026-54591: Arbitrary file...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenSSH vulnerabilities (USN-8533-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8533-1 advisory. It was discovered that OpenSSH sftp did not properly constrain the location of downloaded files when connecting to an...

EulerOS 2.0 SP10 : openssh (EulerOS-SA-2026-2664)

According to the versions of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.CVE-2026-35388 In OpenSSH before 10.3, comman...

EulerOS 2.0 SP10 : openssh (EulerOS-SA-2026-2705)

According to the versions of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.CVE-2026-35388 In OpenSSH before 10.3, comman...

USN-8533-1 openssh vulnerabilities

It was discovered that OpenSSH sftp did not properly constrain the location of downloaded files when connecting to an attacker-controlled server. An attacker could possibly use this issue to write files to unintended locations on the file system. CVE-2026-59995 It was discovered that OpenSSH scp...

CVE-2026-59996

A flaw was found in OpenSSH, a widely used tool for secure remote access. When a user attempts to copy files between two different remote systems using the scp command, the file might be incorrectly placed in a directory above the intended destination. This unintended file placement could lead to...

SUSE CVE-2026-12064

When a user invokes curl using a schemeless URL combined with --proto-default sftp or scp, a disconnect occurs between the tool layer and libcurl. The tool layer incorrectly infers the URL scheme, which erroneously bypasses the initialization of critical SSH security options like...

Linux Distros Unpatched Vulnerability : CVE-2026-54591

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior...

EulerOS 2.0 SP12 : openssh (EulerOS-SA-2026-2550)

According to the versions of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the...

CVE-2026-54591

A flaw was found in AsyncSSH, a Python package for SSHv2 protocol implementation. A malicious SSH server could exploit this vulnerability by sending specially crafted filenames containing directory traversal sequences to an AsyncSSH SCP client. This could allow the server to write arbitrary files...

scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occurs between two remote destinations.

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CVE-2026-41857 BOSH CLI Shell Injection

A compromised or malicious BOSH Director can execute arbitrary shell commands on the operator's workstation when the operator runs bosh ssh or bosh scp/bosh logs -f with default flags. Affected versions: BOSH CLI versions prior to 7.10.5...

DEBIAN-CVE-2026-54591

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.23.1, a malicious SSH server can write arbitrary files on the asyncssh SCP client's filesystem by sending filenames containing ../...

CVE-2026-54591

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.23.1, a malicious SSH server can write arbitrary files on the asyncssh SCP client's filesystem by sending filenames containing ../...

CVE-2026-54591

AsyncSSH (Python) prior to 2.23.1 is vulnerable to SCP path traversal: a malicious SSH server can craft filenames with ../, since _parse_cd_args returns server-provided names verbatim and _recv_files joins them to the destination path without enforcing directory boundaries, enabling arbitrary fil...