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.
Cite this page
CVE-2019-6109. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2019-6109
Use CWE-116, Openbsd vendor hub and Openssh product page to widen CVE-2019-6109 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2024-6387, CVE-2026-35385 and CVE-2023-51767 for nearby disclosures in the same product family.