CVE-2001-0402 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 2.4% (pctl 84)
Patch early
A public exploit exists.
Description
IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 2.45% — more likely to be exploited than 84% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2001-06-18 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| darren reed | ipfilter |
| freebsd | freebsd |
| openbsd | openbsd |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | IPFilter 3.x - Fragment Rule Bypass | 2001-04-09 |
References
- http://archives.neohapsis.com/archives/freebsd/2001-04/0338.html
- http://marc.info/?l=bugtraq&m=98679734015538&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6331
- http://archives.neohapsis.com/archives/freebsd/2001-04/0338.html
- http://marc.info/?l=bugtraq&m=98679734015538&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6331
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