Is CVE-2001-1244 in the CISA KEV catalog?

No. CVE-2001-1244 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2001-1244?

CVE-2001-1244 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2001-1244?

CVE-2001-1244 has an EPSS score of 35.29% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2001-1244

MEDIUMEPSS 98th pctl

5.0

CVSS v2

NVD

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 v2 Vector

No CVSS vector data available.

Exploit Intelligence

35.29%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.