CVE-2000-0440

Freebsd - Denial of Service

Title source: rule
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2000-0440. PoCs published by y3t1.

AI-analyzed exploit summary This exploit targets a vulnerability in NetBSD 1.4.x and FreeBSD 4.x kernels by sending malformed IP packets with unaligned IP timestamp options, causing a kernel panic on Alpha and SPARC architectures. The code crafts ICMP echo packets with specific IP options to trigger the DoS condition.

Description

NetBSD 1.4.2 and earlier allows remote attackers to cause a denial of service by sending a packet with an unaligned IP timestamp option.

Exploits (1)

exploitdb WORKING POC VERIFIED
by y3t1 · cdosbsd
https://www.exploit-db.com/exploits/19896

This exploit targets a vulnerability in NetBSD 1.4.x and FreeBSD 4.x kernels by sending malformed IP packets with unaligned IP timestamp options, causing a kernel panic on Alpha and SPARC architectures. The code crafts ICMP echo packets with specific IP options to trigger the DoS condition.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: NetBSD 1.4.x, FreeBSD 4.x
No auth needed
Prerequisites: Network access to target · Raw socket permissions
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/1173
Third Party Advisory mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2000-05/0088.html

Scores

EPSS 0.0324
EPSS Percentile 86.7%

Details

Status published
Products (5)
freebsd/freebsd 3.4
freebsd/freebsd 4.0
freebsd/freebsd 5.0
netbsd/netbsd 1.4.1
netbsd/netbsd 1.4.2
Published May 01, 2000
Tracked Since Feb 18, 2026