---
id: CVE-2019-6110
title: >-
  In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from
  the server, a malicious server (or Man-in-The-Middle attacker) can manipulate
  the client output, for example to use ANSI control codes to hide additional
  files …
summary: >-
  In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from
  the server, a malicious server (or Man-in-The-Middle attacker) can manipulate
  the client output, for example to use ANSI control codes to hide additional
  files …
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'
cwe:
  - CWE-838
  - CWE-838
vendor: openbsd
product: openssh
affected:
  - openssh <= 7.9
  - winscp <= 5.13
  - element_software
  - ontap_select_deploy
  - storage_automation_store
  - scalance_x204rna_firmware < 3.2.7
  - scalance_x204rna_eec_firmware < 3.2.7
patched:
  - scalance_x204rna_firmware 3.2.7
  - scalance_x204rna_eec_firmware 3.2.7
published: '2019-01-31'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T07:16:55.917'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-6110'
references:
  - url: 'https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf'
    label: cve@mitre.org
  - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c'
    label: cve@mitre.org
  - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c'
    label: cve@mitre.org
  - url: 'https://security.gentoo.org/glsa/201903-16'
    label: cve@mitre.org
  - url: 'https://security.netapp.com/advisory/ntap-20190213-0001/'
    label: cve@mitre.org
  - url: 'https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt'
    label: cve@mitre.org
  - url: 'https://www.exploit-db.com/exploits/46193/'
    label: cve@mitre.org
  - url: 'https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.gentoo.org/glsa/201903-16'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20190213-0001/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.exploit-db.com/exploits/46193/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-412672.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - exploit-available
epss: 0.20906
epssPercentile: 0.97515
exploits:
  exploitdb: true
  checkedAt: '2026-10-14T07:21:40.622Z'
exploitAvailable: true
ingestedAt: '2026-10-14T07:21:04.805Z'
---

## Overview

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.

## Affected

- `openssh <= 7.9`
- `winscp <= 5.13`
- `element_software`
- `ontap_select_deploy`
- `storage_automation_store`
- `scalance_x204rna_firmware < 3.2.7`
- `scalance_x204rna_eec_firmware < 3.2.7`

## Remediation

Upgrade past the affected range:

- `scalance_x204rna_firmware 3.2.7`
- `scalance_x204rna_eec_firmware 3.2.7`