CVE-2004-0257 describes a denial-of-service vulnerability affecting OpenBSD 3.4 and NetBSD 1.6/1.6.1. Remote attackers can crash affected systems by sending a specially crafted IPv6 packet with a small MTU to a listening port, followed by a TCP connect. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and is easily exploitable over the network with low attack complexity, resulting in a partial availability impact. There is no known public exploit code (Metasploit, Nuclei, ExploitDB), and it is not listed on CISA's KEV catalog, suggesting it is not actively exploited. Despite its age, it has garnered moderate community discussion, with 10 mentions.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.6CPE matchmatch criteria | cpe:2.3:o:netbsd:netbsd:1.6:*:*:*:*:*:*:* | ||
1.6.1CPE matchmatch criteria | cpe:2.3:o:netbsd:netbsd:1.6.1:*:*:*:*:*:*:* | ||
3.0CPE matchmatch criteria | cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:* | ||
3.1CPE matchmatch criteria | cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:* | ||
3.2CPE matchmatch criteria | cpe:2.3:o:openbsd:openbsd:3.2:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.