Skip to main content
MEDIUM

CVE-2019-6109

CVSS v3

6.8

MEDIUM

EPSS Score

3.8 %

exploit probability, as of 2026-10-18

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for openssh.

Set up CVE WatchFree account · no credit card

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-2019-6109 Red Hat Product Security138 products fixed · 18 known affected

    openssh: Missing character encoding in progress display 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)

  • RHSA-2019:3702 Red Hat Product Security105 products fixed

    Red Hat Security Advisory: openssh security, bug fix, and enhancement update

Full record on NVD

Description

An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.

Technical details

Published
2019-01-31

Frequently asked questions

What is CVE-2019-6109?

An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.

Is CVE-2019-6109 actively exploited?

Active exploitation of CVE-2019-6109 has not been confirmed. Its EPSS score was 3.8% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-6109?

CVE-2019-6109 has a CVSS v3 base score of 6.8 (MEDIUM severity).

Running openssh? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this productCISA KEV additions, October 2026Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database