CVE-2008-1483: OpenBSD OpenSSH

Medium severity, CVSS 6.9. EPSS: 0.3% chance of exploitation in the next 30 days.

OpenSSH 4.3p2, and probably other versions, allows local users to hijack forwarded X connections by causing ssh to set DISPLAY to :10, even when another process is listening on the associated port, as demonstrated by opening TCP port 6010 (IPv4) and sniffing a cookie sent by Emacs.

Affected products

• OpenBSD OpenSSH: version 4.3p2 only

Published 2008-03-24. Last modified 2026-06-16.