CVE-2001-1244 json
Multiple TCP implementations could allow remote attackers to cause a denial of service (bandwidth and CPU exhaustion) by setting the maximu…
published 2001-07-07 25 y ago modified 2026-06-16 4 mo ago also EUVD-2001-1225
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 22.0%
- EPSS 22.0% chance of exploitation in 30 days, percentile 97%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- First public exploit (EDB-20997)
- Published
Exploit prediction
21.96% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-20997 HP-UX 11 / Linux Kernel 2.4 / Windows 2000/NT 4.0 / IRIX 6.5 - Small TCP MSS Denial of Service dos, 2001-07-07
- securityfocus.com http://www.securityfocus.com/bid/2997 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Technology feeds
References
-
securityfocus.com
/bid/2997
vdb-entry, exploit, vendor-advisory
-
securityfocus.com
/archive/1/195457
mailing-list
-
exchange.xforce.ibmcloud.com
/vulnerabilities/6824
vdb-entry
Sources
- CVE List CVE-2001-1244
- NVD CVE-2001-1244
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.