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CVE-2001-0328

TCP implementations that use random increments for initial sequence numbers (ISN) can allow...

5.0 MediumPublic exploit

TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.

Exploit likelihood

18.1%Up 16.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.

Record
CVE-2001-0328
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE List No score

TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.

Record
CVE-2001-0328
Updated
2026-11-02
EUVDEUVD-2001-0328 No score

TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.

Record
EUVD-2001-0328
Updated
2026-11-03
GitHub AdvisoriesGHSA-jvrp-wcjq-4xx5 No score

TCP implementations that use random increments for initial sequence numbers (ISN) can allow...

TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.

Record
GHSA-jvrp-wcjq-4xx5
Updated
2026-11-02
OSVBELL-CVE-2001-0328 5.0

CVE-2001-0328 does not affect BellSoft software

Record
BELL-CVE-2001-0328
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBLinux Kernel 2.2 - Predictable TCP Initial Sequence Number1999-09-27

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2001-0328 is a medium vulnerability (CVSS 5.0), published May 24, 2001. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 18.1%, the 97th percentile. No source names a fixed version.

References

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