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MEDIUM

CVE-2026-59999

CVSS v3

5.9

MEDIUM

EPSS Score

0.2 %

exploit probability, as of 2026-10-04

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.

Technical details

Published
2026-07-08
Last Modified
2026-07-08

Frequently asked questions

What is CVE-2026-59999?

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.

Is CVE-2026-59999 actively exploited?

Active exploitation of CVE-2026-59999 has not been confirmed. Its EPSS score was 0.2% on 2026-10-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-59999?

CVE-2026-59999 has a CVSS v3 base score of 5.9 (MEDIUM severity).

Is CVE-2026-59999 affecting your environment?

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