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MEDIUM

CVE-2019-6110

CVSS v3

6.8

MEDIUM

EPSS Score

24.9 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2019-6110 Red Hat Product Security27 known affected

    openssh: Acceptance and display of arbitrary stderr allows for spoofing of scp client output

    openssh.src as a component of Red Hat Enterprise Linux 5 · openssh as a component of Red Hat Enterprise Linux 6 · openssh-askpass as a component of Red Hat Enterprise Linux 6

  • ICSA-23-348-10 CISA5 known affected

    Siemens SIMATIC S7-1500

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)

  • SSA-398330 Siemens ProductCERT5 known affected

    SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.0 < V3.1.5 · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.0 < V3.1.5 · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.0 < V3.1.5

  • ICSA-22-349-21 CISA5 known affected

    Siemens SCALANCE X-200RNA Switch Devices

    SCALANCE X204RNA (HSR) (6GK5204-0BA00-2MB2) · SCALANCE X204RNA (PRP) (6GK5204-0BA00-2KB2) · SCALANCE X204RNA EEC (HSR) (6GK5204-0BS00-2NA3)

  • SSA-412672 Siemens ProductCERT5 known affected

    SSA-412672: Multiple OpenSSL and OpenSSH Vulnerabilities in SCALANCE X-200RNA Switch Devices before V3.2.7

    SCALANCE X204RNA (HSR) (6GK5204-0BA00-2MB2) · SCALANCE X204RNA (PRP) (6GK5204-0BA00-2KB2) · SCALANCE X204RNA EEC (HSR) (6GK5204-0BS00-2NA3)

Full record on NVD

Description

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.

Technical details

Published
2019-01-31
Exploit-DB
EDB-46193 EDB-46516

Frequently asked questions

What is CVE-2019-6110?

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.

Is CVE-2019-6110 actively exploited?

Active exploitation of CVE-2019-6110 has not been confirmed. Its EPSS score was 24.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-6110?

CVE-2019-6110 has a CVSS v3 base score of 6.8 (MEDIUM severity).

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