CVE-2019-6110
CVSS v3
6.8
MEDIUM
EPSS Score
20.9 %
exploit probability, as of 2026-10-04
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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 20.9% on 2026-10-04, 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).
Is CVE-2019-6110 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 50 free checks/month · Free API key
Other 2019 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).