CVE-2025-22869

Published Feb 26, 2025

Last updated 10 months ago

Overview

Description
SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.
Source
security@golang.org
NVD status
Analyzed
Products
ssh

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.5
Impact score
3.6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
HIGH

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-770

Social media

Hype score
Not currently trending
  1. 昨日の #fukuokago の資料です。「x/crypto/ssh」に存在した脆弱性(CVE-2025-22869)を発見・報告し、CVEを取得した事例を紹介しました。 https://t.co/aDDfijOPeg

    @vvvatanabe

    26 Aug 2025

    1320 Impressions

    7 Retweets

    16 Likes

    1 Bookmark

    0 Replies

    0 Quotes

  2. ⚠️Múltiples vulnerabilidades en Dell PowerProtect ❗CVE-2025-27363 ❗CVE-2025-24855 ❗CVE-2025-27220 ❗CVE-2025-22869 ➡️Más info: https://t.co/SNJivvTJCI https://t.co/N230rAhUAG

    @CERTpy

    1 Jul 2025

    161 Impressions

    0 Retweets

    0 Likes

    1 Bookmark

    0 Replies

    0 Quotes

  3. ALAS-2025-1982 (important): amazon-ssm-agent #CVE-2025-22869 #AWS https://t.co/rvHjxUEPP1

    @WhatsNewWithAWS

    27 Jun 2025

    46 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  4. ⚠️Múltiples vulnerabilidades del kernel de Linux Red Hat ❗CVE-2025-46337 ❗CVE-2025-21927 ❗CVE-2025-22869 ❗CVE-2025-30204 ❗CVE-2025-24209 ➡️Más info: https://t.co/T4ViIi50N9 https://t.co/rpOVorctqA

    @CERTpy

    2 May 2025

    79 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  5. 🚨 CVE-2025-22869 🔴 HIGH (7.5) 🏢 https://t.co/YfJ3ISAjvH - https://t.co/Bl7CFePxUQ 🏗️ 0 🔗 https://t.co/q9Z2nysDmv 🔗 https://t.co/aKBDtXI3CH 🔗 https://t.co/P7bl4obYSI #CyberCron #VulnAlert @golang https://t.co/mE5uD5W5RW

    @cybercronai

    27 Feb 2025

    13 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  6. CVE-2025-22869 SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, c… https://t.co/hd6ScYOunn

    @CVEnew

    26 Feb 2025

    73 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

Configurations

  1. The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.CVE-2023-48795