FreeBSD 4.x through 4.11 and 5.x through 5.4 allows remote attackers to modify certain TCP options via a TCP packet with the SYN flag set for an already established session.
2005-07-05T04:00:00.000
2025-04-03T01:03:51.193
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | freebsd | freebsd | 4.0 | Yes |
| Operating System | freebsd | freebsd | 4.1 | Yes |
| Operating System | freebsd | freebsd | 4.1.1 | Yes |
| Operating System | freebsd | freebsd | 4.2 | Yes |
| Operating System | freebsd | freebsd | 4.3 | Yes |
| Operating System | freebsd | freebsd | 4.4 | Yes |
| Operating System | freebsd | freebsd | 4.5 | Yes |
| Operating System | freebsd | freebsd | 4.6 | Yes |
| Operating System | freebsd | freebsd | 4.6.2 | Yes |
| Operating System | freebsd | freebsd | 4.7 | Yes |
| Operating System | freebsd | freebsd | 4.8 | Yes |
| Operating System | freebsd | freebsd | 4.9 | Yes |
| Operating System | freebsd | freebsd | 4.10 | Yes |
| Operating System | freebsd | freebsd | 4.11 | Yes |
| Operating System | freebsd | freebsd | 5.0 | Yes |
| Operating System | freebsd | freebsd | 5.1 | Yes |
| Operating System | freebsd | freebsd | 5.2 | Yes |
| Operating System | freebsd | freebsd | 5.2.1 | Yes |
| Operating System | freebsd | freebsd | 5.3 | Yes |
| Operating System | freebsd | freebsd | 5.4 | Yes |