CVE-2004-0641

Thomson SpeedTouch 510 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2004-0641. PoCs published by Stealth & S. Krahmer.

AI-analyzed exploit summary The vulnerability in the Linux kernel's 'secure_tcp_sequence_number' function allows remote users to predict TCP initial sequence numbers (ISN) due to weak MD4-based generation, enabling session spoofing and bypassing IP-based access controls. The analysis references the specific function and file in the kernel code.

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Stealth & S. Krahmer · textremotelinux
https://www.exploit-db.com/exploits/19522

The vulnerability in the Linux kernel's 'secure_tcp_sequence_number' function allows remote users to predict TCP initial sequence numbers (ISN) due to weak MD4-based generation, enabling session spoofing and bypassing IP-based access controls. The analysis references the specific function and file in the kernel code.

Classification
Writeup 90%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Theoretical
Target: Linux kernel (versions prior to fix)
No auth needed
Prerequisites: Network access to target system · Ability to observe or predict TCP sequence numbers
mistral-large-3 · analyzed Feb 18, 2026 Full analysis →

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/16919
Vendor Advisory third-party-advisory x_refsource_auscert
http://www.auscert.org.au/render.html?it=4299
Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/10881
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/12238/

Scores

EPSS 0.0261
EPSS Percentile 83.6%

Details

Status published
Products (1)
thomson/speedtouch 510_adsl_router
Published Aug 05, 2004
Tracked Since Feb 18, 2026