CVE-2001-1244

Name: CVE-2001-1244
Creator: NVD / NIST
Published: 2001-07-07T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 35.29%

Last modified Jun 16, 2026

CVE-2001-1244 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 35.29% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

35.29%

98.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	4.3
Hp	Hp-Ux	11.00
Hp	Hp-Ux	11.0.4
Hp	Hp-Ux	11.11
Hp	Vvos	11.04
Linux	Linux Kernel	2.4.0
Linux	Linux Kernel	2.4.1
Linux	Linux Kernel	2.4.2
Linux	Linux Kernel	2.4.3
Linux	Linux Kernel	2.4.4
Linux	Linux Kernel	2.4.5
Microsoft	Windows 2000	All versions
Microsoft	Windows Nt	4.0
Netbsd	Netbsd	1.5
Netbsd	Netbsd	1.5.1
Openbsd	Openbsd	2.8
Openbsd	Openbsd	2.9
Sun	Sunos	5.5.1
Sun	Sunos	5.7
Sun	Sunos	5.8

References

http://www.securityfocus.com/archive/1/195457
http://www.securityfocus.com/bid/2997Exploit, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6824
http://www.securityfocus.com/archive/1/195457
http://www.securityfocus.com/bid/2997Exploit, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6824

Timeline

Published: Jul 7, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-1244?

How severe is CVE-2001-1244?

Severity scoring for CVE-2001-1244 is pending analysis. The EPSS model estimates a 35.29% probability of exploitation in the next 30 days.

How do I fix CVE-2001-1244?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2001-1244?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST