PF in certain OpenBSD versions, when stateful filtering is enabled, does not limit packets for a session to the original interface, which allows remote attackers to bypass intended packet filters via spoofed packets to other interfaces.
http://www.securityfocus.com/bid/9362
http://www.osvdb.org/19105
http://marc.info/?l=full-disclosure&m=107331321302113&w=2
Source: Mitre, NVD
Published: 2004-12-31
Updated: 2026-06-16
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 0.00351