CVE-2001-1244: freebsd
Vulnerability summary
CVE-2001-1244 is a medium (CVSS 5.0) vulnerability in freebsd. EPSS estimates a 21.96% chance of exploitation in the next 30 days, higher than 97.6% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 03-05-2002PublishedVulnerability first disclosed.
- 08-08-2024Last modifiedVulnerability information updated.
Description
Multiple TCP implementations could allow remote attackers to cause a denial of service (bandwidth and CPU exhaustion) by setting the maximum segment size (MSS) to a very small number and requesting large amounts of data, which generates more packets with less TCP-level data that amplify network traffic and consume more server CPU to process.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
21.96%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 21.96% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (securityfocus.com)
Maturity: unknown
HP-UX 11 / Linux Kernel 2.4 / Windows 2000/NT 4.0 / IRIX 6.5 - Small TCP MSS Denial of Service
Maturity: poc
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Freebsd1 product
- freebsdEOL4.3
Linux1 product
- linux_kernel2.4.0 | 2.4.1 | 2.4.2 | 2.4.3 | 2.4.4 | 2.4.5
Microsoft1 product
- windows_nt4.0 | 4.0:sp1 | 4.0:sp2 | 4.0:sp3 | 4.0:sp4 | 4.0:sp5 | 4.0:sp6 | 4.0:sp6a
Netbsd1 product
- netbsdEOL1.5 | 1.5.1
Openbsd1 product
- openbsdEOL2.8 | 2.9
Sun1 product
- sunos5.5.1 | 5.7 | 5.8
7 vendors · 8 products