CVE Database›CVE-2016-1908

CVE-2016-1908

openssh: possible fallback from untrusted to trusted X11 forwarding

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Severity

Moderate

Red Hat Product Security

4.9

CVSS 2.0

Review impact separately from score.

Published · January 14, 2016

Updated · May 13, 2026

Description

An access flaw was discovered in OpenSSH; the OpenSSH client did not correctly handle failures to generate authentication cookies for untrusted X11 forwarding. A malicious or compromised remote X application could possibly use this flaw to establish a trusted connection to the local X server, even if only untrusted X11 forwarding was requested.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 4.9
AV:N/AC:M/Au:S/C:P/I:P/A:N

CWE-284 · Improper Access Control