CVE-2025-32433-PoC-Analysis

FAQ - CVE-2025-32433 1. What is Erlang OTP? Erlang is a general-purpose programming language. OTP Open Telecom Platform is a collection of middleware, libraries, and design principles used for fault tolerance using the BEAM VPN. 2. Why is this version of Erlang vulnerable? OTP 26.2.5.10 is...

EUVD-2026-111389

russh: peer-declared zero maximum packet size permanently stalls channel writes silent AsyncWrite hang...

CVE-2026-116774

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

DEBIAN-CVE-2026-116774

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

CVE-2026-116774

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

UBUNTU-CVE-2026-116774

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

CVE-2026-116774 russh: peer-declared zero maximum packet size permanently stalls channel writes (silent AsyncWrite hang)

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

CVE-2026-116774

The russh Rust SSH client and server library is vulnerable to a denial-of-service condition in versions 0.60.0 through 0.65.0 . The root cause is that channel-open parsing accepts a peer-declared maximum_packet_size of zero , which is then passed into ChannelTx::poll_writable in russh/src/channel...

CVE-2026-116774

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

CVE-2026-116774 russh: peer-declared zero maximum packet size permanently stalls channel writes (silent AsyncWrite hang)

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

CVE-2026-116774 russh: peer-declared zero maximum packet size permanently stalls channel writes (silent AsyncWrite hang)

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

CVE-2025-32433

Security research on Erlang/OTP SSH CVE-2025-32433 Python exploit Proof-of-Concept CVE-2025-32433 Unauthenticated Remote Code Execution in Erlang/OTP SSH. I also have a banner grabbing Nuclei template and a Nuclei RCE check. The Suricata and Zeek IDS logs are in order based on a succesful Paramik...

CVE-2026-116774: Uncontrolled Resource Consumption

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximumpacketsize of zero and passes it into ChannelTx::pollwritable in russh/src/channels/io/tx.rs. The Channel::data,...

PT-2026-127231

Name of the Vulnerable Software and Affected Versions russh versions 0.60.0 through 0.64.0 Description russh is a Rust SSH client and server library including an SSH agent protocol implementation. The channel-open parsing process accepts a peer-declared maximum packet size of zero, which is then...

PT-2026-105787

Summary A malicious SSH server can wedge an AsyncSSH client, and an authenticated client can wedge an AsyncSSH server, by sending a channel maximum packet size of 0 in SSH MSG CHANNEL OPEN CONFIRMATION server→client or SSH MSG CHANNEL OPEN client→server. AsyncSSH stores the peer-supplied value...

CVE-2026-102821

A flaw was found in russh. An authenticated remote attacker can cause a Denial of Service DoS by initiating a Secure Shell SSH key renegotiation without completing it and flooding the server with channel open requests. Because the server continues buffering incoming requests without draining the...

PT-2026-93998

Name of the Vulnerable Software and Affected Versions AsyncSSH versions prior to 2.24.0 Description AsyncSSH is a Python package providing an asynchronous client and server implementation of the SSHv2 protocol. The software fails to validate the send pktsize value provided by a peer, allowing it ...

Astra Linux – Vulnerability in xrdp

xrdp is an open-source project that provides a graphical login to remote machines using the Microsoft Remote Desktop Protocol RDP. xrdp versions prior to 0.9.21 contain a bug in the xrdpmmtransprocessdrdynvcchannelopen function. There are no known solutions to this issue. Users are advised to...

libssh: libssh: denial of service via zero advertised channel packet size

A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel writes to loop indefinitely and consume CPU, leading to denial of service...

OESA-2026-3476 libssh security update

The ssh library was designed to be used by programmers needing a working SSH implementation by the mean of a library. The complete control of the client is made by the programmer. With libssh, you can remotely execute programs, transfer files, use a secure and transparent tunnel for your remote...