CVE-2000-0916 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 5.5% (pctl 93)
Patch early
A public exploit exists.
Description
FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 5.55% — more likely to be exploited than 93% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2000-12-19 |
| Last modified | 2026-09-23 |
Affected (1)
| Vendor | Product |
|---|---|
| freebsd | freebsd |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 2.2 - Predictable TCP Initial Sequence Number | 1999-09-27 |
References
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:52.tcp-iss.asc
- http://www.securityfocus.com/bid/1766
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:52.tcp-iss.asc
- http://www.securityfocus.com/bid/1766
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