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CVE-2004-0641

HighPublished

Thomson SpeedTouch 510 ADSL Router with firmware GV8BAA3.270, and possibly earlier versions, generates predictable TCP Initial Sequence Numbers (ISNs),...

Published: Apr 14, 2005
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Sep 27, 1999

Primary CVSS

7.5/ 10High

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS probability estimate

2.6%

Low · next 30 days

Percentile: 85.0%
Model date: Oct 11, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Thomson SpeedTouch 510 ADSL Router with firmware GV8BAA3.270, and possibly earlier versions, generates predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.

Sources

Linux Kernel 2.2 - Predictable TCP Initial Sequence NumberExploit
Stealth & S. Krahmer · linux · Sep 27, 1999

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