An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
Cite this page
CVE-2019-6111. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2019-6111
Use CWE-22, Openbsd vendor hub and Openssh product page to widen CVE-2019-6111 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.