CVE-2001-1244 describes a denial-of-service vulnerability affecting multiple TCP implementations, including FreeBSD, HP, Linux, Microsoft, NetBSD, OpenBSD, and Sun. Attackers can exploit this by setting a very small Maximum Segment Size (MSS) and requesting large data transfers, leading to excessive packet generation, network bandwidth exhaustion, and high CPU utilization on affected servers. Rated as Medium severity (CVSS 5.0), this vulnerability requires no authentication and has low attack complexity, resulting in a partial availability impact. While not actively exploited in the wild and not on CISA's KEV catalog, an ExploitDB entry exists, though there is no evidence of broader community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.3CPE matchmatch criteria | cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:* | ||
11.00CPE matchmatch criteria | cpe:2.3:o:hp:hp-ux:11.00:*:*:*:*:*:*:* | ||
11.0.4CPE matchmatch criteria | cpe:2.3:o:hp:hp-ux:11.0.4:*:*:*:*:*:*:* | ||
11.11CPE matchmatch criteria | cpe:2.3:o:hp:hp-ux:11.11:*:*:*:*:*:*:* | ||
11.04CPE matchmatch criteria | cpe:2.3:o:hp:vvos:11.04:*:*:*:*:*:*:* |
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.