CVE-2019-6111: An issue was discovered in OpenSSH 7.9.

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 2 Nov 2020. It cites 2 public reports, the first from 2 Nov 2020.

• cybersecurityworks.com
• info.securin.io

How likely is exploitation in the next 30 days?

58.2%

EPSS score, percentile 99.1 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?

5.9 Medium

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (8)

Which versions are affected?

Not stated. The CVE record gives vendor and product as “n/a” and the version as “unspecified”.

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

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).

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

• DSA-4387 (Vendor advisory)
• USN-3885-1 (Vendor advisory)
• USN-3885-2 (Vendor advisory)
• GLSA-201903-16 (Vendor advisory)
• FEDORA-2019-0f4190cdb0 (Vendor advisory)
• openSUSE-SU-2019:1602 (Vendor advisory)
• FreeBSD-EN-19:10 (Vendor advisory)
• RHSA-2019:3702 (Vendor advisory)

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

The CVE record does not name affected products or versions: vendor and product are “n/a” and the version is “unspecified”.

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline