CVE-2004-0641

CVE-2004-0641 is a high-severity vulnerability in Thomson Speedtouch with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

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.

Frequently asked questions

What is CVE-2004-0641?
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.
How severe is CVE-2004-0641?
CVE-2004-0641 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2004-0641 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0641?
CVE-2004-0641 affects Thomson Speedtouch. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-0641?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2004-0641 published?
CVE-2004-0641 was published on 2004-08-05 and last updated on 2026-06-16.

References

Affected products (1)

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